Correct optimization from 3464f5e77f34; add a test.
If there are two (or more) heads that point to the same .hgtags
node, we can safely skip parsing the file in all but the last head.
(In 3464f5e77f34, we were parsing the file in the first head and
skipping all the others.)
adding a
adding b
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
the --branches option is deprecated, please use 'hg branches' instead
changeset: 0:b544c4ac4389
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 0
the --branch option is deprecated, please use 'hg branch' instead
Using head f4ac749470f2 for branch foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
changeset: 1:f4ac749470f2
tag: foo
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
adding c
the --branch option is deprecated, please use 'hg branch' instead
Using head f4ac749470f2 for branch foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
the --branches option is deprecated, please use 'hg branches' instead
changeset: 2:1505d56ee00e
tag: tip
parent: 0:b544c4ac4389
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 0.0
changeset: 1:f4ac749470f2
tag: foo
branch: foo
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
adding d
the --branch option is deprecated, please use 'hg branch' instead
Using head f4ac749470f2 for branch foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
the --branches option is deprecated, please use 'hg branches' instead
changeset: 3:53b72df12ae5
tag: tip
parent: 0:b544c4ac4389
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 0.0
changeset: 1:f4ac749470f2
tag: foo
branch: foo
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: 1