$ git clone -n https://src.fedoraproject.org/rpms/pylast.git /var/lib/mock/f45-build-29157-636/root/chroot_tmpdir/scmroot/pylast
Cloning into '/var/lib/mock/f45-build-29157-636/root/chroot_tmpdir/scmroot/pylast'...
$ git fetch origin 3fd978c3f9220256f6192876db8e1631a7cd9247:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pylast
 * [new ref]         3fd978c3f9220256f6192876db8e1631a7cd9247 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3fd978c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild