Minor fix for revert: No need to make a backup when forgetting added files.
echo foo > foo && hg add foo && hg revert foo
creates foo.orig, though foo is not changed or deleted.
1:f248da0d4c3e
0:9eca13a34789
f248da0d4c3e tip
9eca13a34789
9eca13a34789+
reverting file1
9eca13a34789
f248da0d4c3e tip
merge: warning: conflicts during merge
merging file1
merging file1 failed!
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
f248da0d4c3e tip