branch: delete obsolete message about changing branch of obsolete commit
We now rely on `rewriteutil.precheck()` to check for divergence, so we
don't need the extra check in `cmdutil.changebranch()`. The former
check is a little less strict in that it allows you to rewrite a
commit without non-obsolete successors.
Differential Revision: https://phab.mercurial-scm.org/D10519
--- a/mercurial/cmdutil.py Tue Feb 23 10:28:42 2021 -0800
+++ b/mercurial/cmdutil.py Tue Apr 27 14:36:52 2021 -0700
@@ -997,11 +997,6 @@
_(b"a branch of the same name already exists")
)
- if repo.revs(b'obsolete() and %ld', revs):
- raise error.InputError(
- _(b"cannot change branch of a obsolete changeset")
- )
-
# make sure only topological heads
if repo.revs(b'heads(%ld) - head()', revs):
raise error.InputError(