$ git clone -n https://src.fedoraproject.org/rpms/stage.git /var/lib/mock/f38-build-side-42-init-devel-1304927-30685/root/chroot_tmpdir/scmroot/stage
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1304927-30685/root/chroot_tmpdir/scmroot/stage'...
$ git fetch origin fdee55474cc094fa0b946d1b33d0e84bf1ad716f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stage
 * [new ref]         fdee55474cc094fa0b946d1b33d0e84bf1ad716f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdee554 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild