Stash away the original head in ORIG_HEAD when resetting.
Stash away the original head in ORIG_HEAD when resetting.

When rewinding the head, stash away the value of the original
HEAD in ORIG_HEAD, just like git-resolve-script does.

Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git