--- a/hgext/histedit.py Tue Oct 01 00:12:34 2013 +0900
+++ b/hgext/histedit.py Tue Oct 01 00:12:34 2013 +0900
@@ -462,6 +462,15 @@
With --outgoing, this edits changesets not found in the
destination repository. If URL of the destination is omitted, the
'default-push' (or 'default') path will be used.
+
+ For safety, this command is aborted, also if there are ambiguous
+ outgoing revisions which may confuse users: for example, there are
+ multiple branches containing outgoing revisions.
+
+ Use "min(outgoing() and ::.)" or similar revset specification
+ instead of --outgoing to specify edit target revision exactly in
+ such ambiguous situation. See :hg:`help revsets` for detail about
+ selecting revisions.
"""
# TODO only abort if we try and histedit mq patches, not just
# blanket if mq patches are applied somewhere