$ git clone -n https://src.fedoraproject.org/rpms/libwbxml.git /var/lib/mock/f45-build-17243-497/root/chroot_tmpdir/scmroot/libwbxml
Cloning into '/var/lib/mock/f45-build-17243-497/root/chroot_tmpdir/scmroot/libwbxml'...
$ git fetch origin bf3db8ef1aa39a014abc82003524b737c41a88f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libwbxml
 * [new ref]         bf3db8ef1aa39a014abc82003524b737c41a88f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf3db8e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild