transitive copy/rename
Add support for transitive copy or rename operations, e.g.
hg rename a b
... (possibly edit b)
hg rename b c
hg commit ...
by actually renaming "b" as "c" while recording a copy of
"a" to "c" and a removal of "a".
#!/bin/sh
mkdir a
cd a
hg init
echo a > a
hg add a
hg commit -m test -d '0 0'
# Default operation
hg clone . ../b
cd ../b
cat a
hg verify
# No update
hg clone -U . ../c
cd ../c
cat a
hg verify
# Default destination
mkdir ../d
cd ../d
hg clone ../a
cd a
hg cat a