$ git clone -n https://src.fedoraproject.org/rpms/cloog.git /var/lib/mock/f45-build-4042-329/root/chroot_tmpdir/scmroot/cloog
Cloning into '/var/lib/mock/f45-build-4042-329/root/chroot_tmpdir/scmroot/cloog'...
$ git fetch origin 1c2fb6a1b593f6bfafb57ea7b47d24eb7440fbd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cloog
 * [new ref]         1c2fb6a1b593f6bfafb57ea7b47d24eb7440fbd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c2fb6a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild