git rev-list --all --reflog does not include worktree references

When running git rev-list --all --reflog in the main worktree it doesn't include commits only referenced by the worktrees, neither HEAD nor its reflog.

$ git init test $ cd test # add some commits $ touch 1; git add 1; git commit -m 1 $ touch 2; git add 2; git commit -m 2 # add new worktree $ git worktree add ../test2 master^{} $ cd ../test2 # add more commits $ touch 3; git add 3; git commit -m 3 $ touch 4; git add 4; git commit -m 4 # create an unreferenced commit $ git checkout @^ # both commands should give the same number of commits $ git rev-list --reflog | wc -l 4 $ git -C ../test rev-list --all --reflog | wc -l 2

IIUC this will cause git gc to prune references from worktrees too early.

Andreas.