$ git clone -n https://src.fedoraproject.org/rpms/perl-Algorithm-Loops.git /var/lib/mock/f45-build-21615-587/root/chroot_tmpdir/scmroot/perl-Algorithm-Loops
Cloning into '/var/lib/mock/f45-build-21615-587/root/chroot_tmpdir/scmroot/perl-Algorithm-Loops'...
$ git fetch origin 9b8521311c413bdce9a109f3cb4926794fcab0d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Algorithm-Loops
 * [new ref]         9b8521311c413bdce9a109f3cb4926794fcab0d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b85213 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild