$ git clone -n https://src.fedoraproject.org/rpms/golang-github-saracen-walker.git /var/lib/mock/f40-build-2289010-55828/root/chroot_tmpdir/scmroot/golang-github-saracen-walker
Cloning into '/var/lib/mock/f40-build-2289010-55828/root/chroot_tmpdir/scmroot/golang-github-saracen-walker'...
$ git fetch origin a2ad0d0fde13d179b7f4ce4667578ca36e98e8e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-saracen-walker
 * [new ref]         a2ad0d0fde13d179b7f4ce4667578ca36e98e8e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2ad0d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild