Fix bug in terms when collapsing unavailable versions in resolver errors (#9877)

Closes #9861
Closes pubgrub-rs/pubgrub#297

Author: zanieb

crates/uv-resolver/src/error.rs

@@ -673,13 +673,18 @@ fn collapse_unavailable_versions(
                             // And the package and reason are the same...
                             if package == other_package && reason == other_reason {
                                 // Collapse both into a new node, with a union of their ranges
+                                let versions = other_versions.union(versions);
+                                let mut terms = terms.clone();
+                                if let Some(Term::Positive(range)) = terms.get_mut(package) {
+                                    *range = versions.clone();
+                                }
                                 *tree = DerivationTree::Derived(Derived {
-                                    terms: terms.clone(),
+                                    terms,
                                     shared_id: *shared_id,
                                     cause1: cause1.clone(),
                                     cause2: Arc::new(DerivationTree::External(External::Custom(
                                         package.clone(),
-                                        versions.union(other_versions),
+                                        versions,
                                         reason.clone(),
                                     ))),
                                 });
@@ -696,12 +701,17 @@ fn collapse_unavailable_versions(
                             // And the package and reason are the same...
                             if package == other_package && reason == other_reason {
                                 // Collapse both into a new node, with a union of their ranges
+                                let versions = other_versions.union(versions);
+                                let mut terms = terms.clone();
+                                if let Some(Term::Positive(range)) = terms.get_mut(package) {
+                                    *range = versions.clone();
+                                }
                                 *tree = DerivationTree::Derived(Derived {
-                                    terms: terms.clone(),
+                                    terms,
                                     shared_id: *shared_id,
                                     cause1: Arc::new(DerivationTree::External(External::Custom(
                                         package.clone(),
-                                        versions.union(other_versions),
+                                        versions,
                                         reason.clone(),
                                     ))),
                                     cause2: cause2.clone(),

crates/uv/tests/it/cache_prune.rs

@@ -263,7 +263,10 @@ fn prune_unzipped() -> Result<()> {
           and all of:
               iniconfig<=0.1
               iniconfig>=1.0.0
-          need to be downloaded from a registry, we can conclude that iniconfig<1.0.0 cannot be used.
+          need to be downloaded from a registry, we can conclude that all of:
+              iniconfig<=0.1
+              iniconfig>=1.0.0
+           cannot be used.
           And because you require iniconfig, we can conclude that your requirements are unsatisfiable.
 
           hint: Pre-releases are available for `iniconfig` in the requested range (e.g., 0.2.dev0), but pre-releases weren't enabled (try: `--prerelease=allow`)

crates/uv/tests/it/pip_compile.rs

@@ -13818,7 +13818,7 @@ fn invalid_platform() -> Result<()> {
               open3d==0.16.1
               open3d==0.17.0
               open3d==0.18.0
-          and open3d<=0.15.2 has no wheels with a matching Python ABI tag, we can conclude that open3d<0.9.0.0 cannot be used.
+          and open3d<=0.15.2 has no wheels with a matching Python ABI tag, we can conclude that open3d<=0.15.2 cannot be used.
           And because open3d>=0.16.0 has no wheels with a matching platform tag and you require open3d, we can conclude that your requirements are unsatisfiable.
     "###);
 

crates/uv/tests/it/pip_install.rs

@@ -2182,11 +2182,11 @@ fn install_only_binary_all_and_no_binary_all() {
               anyio>=3.7.0,<=3.7.1
               anyio>=4.0.0
           have no usable wheels and building from source is disabled, we can conclude that all of:
-              anyio<1.1.0
-              anyio>1.4.0,<2.0.0
-              anyio>2.2.0,<3.0.0
-              anyio>3.6.2,<3.7.0
-              anyio>3.7.1,<4.0.0
+              anyio>=1.0.0,<=1.4.0
+              anyio>=2.0.0,<=2.2.0
+              anyio>=3.0.0,<=3.6.2
+              anyio>=3.7.0,<=3.7.1
+              anyio>=4.0.0
            cannot be used.
           And because you require anyio, we can conclude that your requirements are unsatisfiable.
 

crates/uv/tests/it/tool_list.rs

@@ -276,7 +276,7 @@ fn tool_list_show_version_specifiers() {
 
     uv_snapshot!(context.filters(), context.tool_list().arg("--show-version-specifiers")
     .env(EnvVars::UV_TOOL_DIR, tool_dir.as_os_str())
-    .env(EnvVars::XDG_BIN_HOME, bin_dir.as_os_str()), @r#"
+    .env(EnvVars::XDG_BIN_HOME, bin_dir.as_os_str()), @r###"
     success: true
     exit_code: 0
     ----- stdout -----
@@ -287,12 +287,12 @@ fn tool_list_show_version_specifiers() {
     - flask
 
     ----- stderr -----
-    "#);
+    "###);
 
     // with paths
     uv_snapshot!(context.filters(), context.tool_list().arg("--show-version-specifiers").arg("--show-paths")
     .env(EnvVars::UV_TOOL_DIR, tool_dir.as_os_str())
-    .env(EnvVars::XDG_BIN_HOME, bin_dir.as_os_str()), @r#"
+    .env(EnvVars::XDG_BIN_HOME, bin_dir.as_os_str()), @r###"
     success: true
     exit_code: 0
     ----- stdout -----
@@ -303,5 +303,5 @@ fn tool_list_show_version_specifiers() {
     - flask ([TEMP_DIR]/bin/flask)
 
     ----- stderr -----
-    "#);
+    "###);
 }