$ git clone -n https://src.fedoraproject.org/rpms/antimicrox.git /var/lib/mock/f41-build-side-1-3133708-39698/root/chroot_tmpdir/scmroot/antimicrox
Cloning into '/var/lib/mock/f41-build-side-1-3133708-39698/root/chroot_tmpdir/scmroot/antimicrox'...
$ git fetch origin ca75716504baebb8b4bdfb5b3f028f312668a49d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/antimicrox
 * [new ref]         ca75716504baebb8b4bdfb5b3f028f312668a49d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca75716 3.5.0