Merge IPv6 fix.
+ hg init
+ hg add a
+ hg commit -m test -d 0 0
+ hg history
changeset: 0:acb14030fe0a
tag: tip
user: test
date: Thu Jan 1 00:00:00 1970
summary: test
+ hg tag -d 0 0 bleah
+ hg history
changeset: 1:863197ef0378
tag: tip
user: test
date: Thu Jan 1 00:00:00 1970
summary: Added tag bleah for changeset acb14030fe0a21b60322c440ad2d20cf7685a376
changeset: 0:acb14030fe0a
tag: bleah
user: test
date: Thu Jan 1 00:00:00 1970
summary: test
+ hg tag -d 0 0 bleah2
abort: working copy of .hgtags is changed!
(please commit .hgtags manually)
failed