$ git clone -n https://src.fedoraproject.org/rpms/device-mapper-persistent-data.git /var/lib/mock/f45-build-8541-390/root/chroot_tmpdir/scmroot/device-mapper-persistent-data
Cloning into '/var/lib/mock/f45-build-8541-390/root/chroot_tmpdir/scmroot/device-mapper-persistent-data'...
$ git fetch origin 72a87f69866059786122d191d712ee5b634c6f57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/device-mapper-persistent-data
 * [new ref]         72a87f69866059786122d191d712ee5b634c6f57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72a87f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild