$ git clone -n https://src.fedoraproject.org/rpms/mesa.git /var/lib/mock/f38-build-719883-97316/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/f38-build-719883-97316/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin 46470cb4edd0eaa1cffa37adccf4a4b121db4c76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mesa
 * [new ref]         46470cb4edd0eaa1cffa37adccf4a4b121db4c76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46470cb Update to mesa 23.1.1