$ git clone -n https://src.fedoraproject.org/rpms/giflib.git /var/lib/mock/f40-build-1998506-44242/root/chroot_tmpdir/scmroot/giflib
Cloning into '/var/lib/mock/f40-build-1998506-44242/root/chroot_tmpdir/scmroot/giflib'...
$ git fetch origin 4eea5ef82fe65114294d7752ddb2875ebbddffa0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/giflib
 * [new ref]         4eea5ef82fe65114294d7752ddb2875ebbddffa0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4eea5ef Add patch for CVE-2023-39742