$ git clone -n https://src.fedoraproject.org/rpms/sblim-cmpi-rpm.git /var/lib/mock/f45-build-35600-696/root/chroot_tmpdir/scmroot/sblim-cmpi-rpm
Cloning into '/var/lib/mock/f45-build-35600-696/root/chroot_tmpdir/scmroot/sblim-cmpi-rpm'...
$ git fetch origin 4d730cb1cb9768182840a1b862b7c2242ace085f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sblim-cmpi-rpm
 * [new ref]         4d730cb1cb9768182840a1b862b7c2242ace085f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d730cb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild