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.)
1:f248da0d4c3e
0:9eca13a34789
f248da0d4c3e tip
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
9eca13a34789
9eca13a34789+
reverting file1
9eca13a34789
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
f248da0d4c3e tip
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
merge: warning: conflicts during merge
merging file1
merging file1 failed!
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
There are unresolved merges with locally modified files.
diff -r f248da0d4c3e file1
--- a/file1
+++ b/file1
@@ -1,3 +1,7 @@ added file1
added file1
another line of text
+<<<<<<<
+changed file1 different
+=======
changed file1
+>>>>>>>
M file1
f248da0d4c3e+ tip
reverting file1
f248da0d4c3e tip
f248da0d4c3e tip
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
f248da0d4c3e tip