$ git clone -n https://src.fedoraproject.org/rpms/liblerc.git /var/lib/mock/f45-build-16475-486/root/chroot_tmpdir/scmroot/liblerc
Cloning into '/var/lib/mock/f45-build-16475-486/root/chroot_tmpdir/scmroot/liblerc'...
$ git fetch origin a2af670c77a91c3fd8a00d49fc41ffd1c7168918:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblerc
 * [new ref]         a2af670c77a91c3fd8a00d49fc41ffd1c7168918 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2af670 Updte to 4.2.0