$ git clone -n https://src.fedoraproject.org/rpms/libmd.git /var/lib/mock/f45-build-16524-487/root/chroot_tmpdir/scmroot/libmd
Cloning into '/var/lib/mock/f45-build-16524-487/root/chroot_tmpdir/scmroot/libmd'...
$ git fetch origin e094ff97b89b8a436f723b409aeb307adedc345d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmd
 * [new ref]         e094ff97b89b8a436f723b409aeb307adedc345d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e094ff9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild