On Tue, Apr 22, 2025 at 08:02:20PM -0500, Nico Williams wrote: > But remember that proponents want change IDs to not quite be unique, > since the point is that they tie multiple different versions of a commit > series together for the purpose of code review. In the end, when the > code review is completed and approved then the change ID might be unique > again, but then cherry-picking onto other branches for forward- or > back-porting might render them non-unique again. Ah, right, the thing about change IDs getting copied to new commits when cherry-picking was my suggestion. I stand by it, but it's not what others are proposing.