Fails when GIT_TRACE is set

[mcepl]

 $ osc service manualrun -v
Running source_service 'obs_scm' ...
Run source service: /usr/lib/obs/service/obs_scm --versionprefix 0.8.0+git --url https://github.com/git-bug/git-bug.git --scm git --changesgenerate enable --changesauthor mcepl@cepl.eu --outdir /home/matej/build/devel:tools:scm/git-bug/tmpoedlmd__.obs_scm.service
16:28:18.313855 git.c:476               trace: built-in: git version
16:28:18.316114 git.c:476               trace: built-in: git config remote.origin.url https://github.com/git-bug/git-bug.git
16:28:18.318527 git.c:476               trace: built-in: git fetch --filter=tree:0 --tags
16:28:18.319525 run-command.c:667       trace: run_command: GIT_DIR=.git git remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.319532 run-command.c:759       trace: start_command: /usr/libexec/git/git remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.321606 git.c:772               trace: exec: git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.321645 run-command.c:667       trace: run_command: git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.321661 run-command.c:759       trace: start_command: /usr/libexec/git/git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.897431 run-command.c:1534      run_processes_parallel: preparing to run up to 1 tasks
16:28:18.897454 run-command.c:1562      run_processes_parallel: done
16:28:18.897465 run-command.c:667       trace: run_command: git maintenance run --auto --no-quiet --detach
16:28:18.897643 run-command.c:759       trace: start_command: /usr/libexec/git/git maintenance run --auto --no-quiet --detach
16:28:18.899677 git.c:476               trace: built-in: git maintenance run --auto --no-quiet --detach
16:28:18.902005 git.c:476               trace: built-in: git fetch --filter=tree:0
16:28:18.902855 run-command.c:667       trace: run_command: GIT_DIR=.git git remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.902862 run-command.c:759       trace: start_command: /usr/libexec/git/git remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.904271 git.c:772               trace: exec: git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.904287 run-command.c:667       trace: run_command: git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:18.904295 run-command.c:759       trace: start_command: /usr/libexec/git/git-remote-https origin https://github.com/git-bug/git-bug.git
16:28:19.290663 run-command.c:1534      run_processes_parallel: preparing to run up to 1 tasks
16:28:19.290686 run-command.c:1562      run_processes_parallel: done
16:28:19.290697 run-command.c:667       trace: run_command: git maintenance run --auto --no-quiet --detach
16:28:19.290873 run-command.c:759       trace: start_command: /usr/libexec/git/git maintenance run --auto --no-quiet --detach
16:28:19.293211 git.c:476               trace: built-in: git maintenance run --auto --no-quiet --detach
16:28:19.300953 git.c:476               trace: built-in: git merge origin/master
Already up to date.
16:28:19.304276 git.c:476               trace: built-in: git rev-parse --verify --quiet master
0ab94c9b7ac53ca9ab56febcf5cc3f26959e8b8a
Command ['git', 'log', '--no-merges', '--pretty=format:%s', "d499b6e9d3333334614924669b74640a2d0b5485..16:28:19.377017 git.c:476               trace: built-in: git log -n1 '--pretty=format:%H'\n0ab94c9b7ac53ca9ab56febcf5cc3f26959e8b8a"] failed(128): '16:28:19.379541 git.c:476               trace: built-in: git log --no-merges '--pretty=format:%s' 'd499b6e9d3333334614924669b74640a2d0b5485..16:28:19.377017 git.c:476               trace: built-in: git log -n1 '\''--pretty=format:%H'\''
0ab94c9b7ac53ca9ab56febcf5cc3f26959e8b8a'
fatal: invalid object name 'd499b6e9d3333334614924669b74640a2d0b5485..16'.
'
Exception ignored in atexit callback <bound method Tasks.cleanup of <TarSCM.tasks.Tasks object at 0x7fb61af98050>>:
Traceback (most recent call last):
  File "/usr/lib/obs/service/TarSCM/tasks.py", line 60, in cleanup
    self.scm_object.cleanup()
  File "/usr/lib/obs/service/TarSCM/scm/git.py", line 478, in cleanup
    self.helpers.safe_run(
  File "/usr/lib/obs/service/TarSCM/helpers.py", line 72, in safe_run
    result = self.run_cmd(cmd, cwd, interactive, raisesysexit=True)
  File "/usr/lib/obs/service/TarSCM/helpers.py", line 59, in run_cmd
    raise SystemExit(
SystemExit: Command ['git', 'checkout', '16:28:19.306136 git.c:476               trace: built-in: git rev-parse --abbrev-ref HEAD\nmaster'] failed(1): '16:28:19.381636 git.c:476               trace: built-in: git checkout '16:28:19.306136 git.c:476               trace: built-in: git rev-parse --abbrev-ref HEAD
master'
error: pathspec '16:28:19.306136 git.c:476               trace: built-in: git rev-parse --abbrev-ref HEAD
master' did not match any file(s) known to git
'
Aborting: service call failed:  /usr/lib/obs/service/obs_scm --versionprefix 0.8.0+git --url https://github.com/git-bug/git-bug.git --scm git --changesgenerate enable --changesauthor mcepl@cepl.eu --outdir /home/matej/build/devel:tools:scm/git-bug/tmpoedlmd__.obs_scm.service
16:28:19.479600 git.c:476               trace: built-in: git config --bool core.sparseCheckout
16:28:19.485960 git.c:476               trace: built-in: git config --bool bash.showDirtyState
16:28:19.489683 git.c:476               trace: built-in: git diff --no-ext-diff --quiet
16:28:19.493232 git.c:476               trace: built-in: git diff --no-ext-diff --cached --quiet
16:28:19.498371 git.c:476               trace: built-in: git rev-parse --verify --quiet refs/stash
16:28:19.504233 git.c:476               trace: built-in: git config --bool bash.showUntrackedFiles
 $