$ git clone -n https://src.fedoraproject.org/rpms/cutecosmic.git /var/lib/mock/f45-build-5789-342/root/chroot_tmpdir/scmroot/cutecosmic
Cloning into '/var/lib/mock/f45-build-5789-342/root/chroot_tmpdir/scmroot/cutecosmic'...
$ git fetch origin 0d4bb0dba7278b834e91d83e65b5d75c653f4db4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cutecosmic
 * [new ref]         0d4bb0dba7278b834e91d83e65b5d75c653f4db4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d4bb0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild