$ git clone -n https://src.fedoraproject.org/rpms/wcd.git /var/lib/mock/f45-build-38292-723/root/chroot_tmpdir/scmroot/wcd
Cloning into '/var/lib/mock/f45-build-38292-723/root/chroot_tmpdir/scmroot/wcd'...
$ git fetch origin 6ab2a0fc8a9c5138c37702216f5d8e8a897fe1c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wcd
 * [new ref]         6ab2a0fc8a9c5138c37702216f5d8e8a897fe1c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ab2a0f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild