$ git clone -n https://src.fedoraproject.org/rpms/loudgain.git /var/lib/mock/f40-build-1737178-24672/root/chroot_tmpdir/scmroot/loudgain
Cloning into '/var/lib/mock/f40-build-1737178-24672/root/chroot_tmpdir/scmroot/loudgain'...
$ git fetch origin b3421651b17b4d43b36f01308360c46098f89f61:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/loudgain
 * [new ref]         b3421651b17b4d43b36f01308360c46098f89f61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b342165 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild