$ git clone -n https://src.fedoraproject.org/rpms/abrt-java-connector.git /var/lib/mock/f41-build-side-1-2631378-25703/root/chroot_tmpdir/scmroot/abrt-java-connector
Cloning into '/var/lib/mock/f41-build-side-1-2631378-25703/root/chroot_tmpdir/scmroot/abrt-java-connector'...
$ git fetch origin 5cead4a4f02d8e5203a2d0897a670606aefcf366:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/abrt-java-connector
 * [new ref]         5cead4a4f02d8e5203a2d0897a670606aefcf366 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cead4a convert GPLv2+ license to SPDX