[PATCH] scripts: Refine git-checkout.sh change for different branches

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

The change works for divergent branches, but doesn't work for explicit SHAs.

Instead of passing `-b $TAG` to clone, explicitly fetch the $TAG we want after
cloning.

Fixes: c554ec124b12 ("scripts: Fix git-checkout.sh to work with branches other 
than master")
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>

Speculative fix, pending CI:
  https://gitlab.com/xen-project/people/andyhhp/xen/-/pipelines/1521847529
---
 scripts/git-checkout.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/git-checkout.sh b/scripts/git-checkout.sh
index 3796cbfe39a7..9f8f2bd04fca 100755
--- a/scripts/git-checkout.sh
+++ b/scripts/git-checkout.sh
@@ -14,9 +14,10 @@ set -e
 if test \! -d $DIR-remote; then
        rm -rf $DIR-remote $DIR-remote.tmp
        mkdir -p $DIR-remote.tmp; rmdir $DIR-remote.tmp
-       $GIT clone -b $TAG $TREE $DIR-remote.tmp
+       $GIT clone $TREE $DIR-remote.tmp
        if test "$TAG" ; then
                cd $DIR-remote.tmp
+                $GIT fetch origin $TAG
                $GIT branch -D dummy >/dev/null 2>&1 ||:
                $GIT checkout -b dummy $TAG
                cd -

base-commit: 9a2a50d5de7647bfb529867fdce47ec64b07f06a
prerequisite-patch-id: ef7a8f78a2a3bfb35a2835ce8c2ec97d95f1267e
prerequisite-patch-id: 8c25962203bdb283a9c95328fb0867ffa3da8b95
-- 
2.39.5