$ git clone -n https://src.fedoraproject.org/rpms/lv2-fabla.git /var/lib/mock/f45-build-17796-504/root/chroot_tmpdir/scmroot/lv2-fabla
Cloning into '/var/lib/mock/f45-build-17796-504/root/chroot_tmpdir/scmroot/lv2-fabla'...
$ git fetch origin e90eb7cd364b2f9f50c3047cbdabd746b5c0ca1d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lv2-fabla
 * [new ref]         e90eb7cd364b2f9f50c3047cbdabd746b5c0ca1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e90eb7c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild