./g: don't exit early on ./g checkout -f

Reviewed-on: https://gerrit.libreoffice.org/56822
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
(cherry picked from commit 5fce97a58b8f764e35bf98128591c9a89537da05)

Change-Id: I33f54c365bce64ccccfeb1c58fc8e4faddb7ad77
Reviewed-on: https://gerrit.libreoffice.org/56916
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
(cherry picked from commit dca20728ebe798ada1045ea3dabcb981166e2b9d)
diff --git a/g b/g
index 423a200..37a7fa5 100755
--- a/g
+++ b/g
@@ -209,7 +209,7 @@
     git checkout "$@" || return $?
     for cmd in "$@" ; do
 	if [ "$cmd" = "-f" ]; then
-	    return 0
+	    continue
 	elif [ "$cmd" = "-b" ] ; then
 	    create_branch=1
 	elif [ "$create_branch" = "1" ] ; then