$ git clone -n https://src.fedoraproject.org/rpms/libmspack.git /var/lib/mock/f45-build-16618-488/root/chroot_tmpdir/scmroot/libmspack
Cloning into '/var/lib/mock/f45-build-16618-488/root/chroot_tmpdir/scmroot/libmspack'...
$ git fetch origin f7c394a808e4613e265e7a41d72838b12ea8aa91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmspack
 * [new ref]         f7c394a808e4613e265e7a41d72838b12ea8aa91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7c394a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild