specify a rewrite for multi link is still not supported on v6.3

[AnsonHwang86]

Hello, I meet this in v5, but now 6.3 has release.
this limit stop almost half of my use case to use rewrite.

Have any plan for this? thanks.

$ gel migration create
gel error: SchemaDefinitionError: cannot specify a rewrite for link 'printCounters' of object type 'default::ShipmentItem' because it is multi
  Hint: this is a temporary implementation restriction
gel error: cannot proceed until schema files are fixed