rebase: fix crash with in-memory rebase and copies...
rebase: fix crash with in-memory rebase and copies
When using regular on-disk rebase, filectx.markcopies() calls to
dirstate.copy(), which happily records the copy. Then it's simply
ignored if it doesn't matter for the commit (as in the test case I
added in the previous patch). Let's do the same for overlayworkingctx.
Differential Revision:
https://phab.mercurial-scm.org/D6133