$ git clone -n https://src.fedoraproject.org/rpms/kreport.git /var/lib/mock/f41-build-850091-165127/root/chroot_tmpdir/scmroot/kreport
Cloning into '/var/lib/mock/f41-build-850091-165127/root/chroot_tmpdir/scmroot/kreport'...
$ git fetch origin 5a619339bbb3a281b8796f3f42767fdc048428d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kreport
 * [new ref]         5a619339bbb3a281b8796f3f42767fdc048428d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a61933 Disable web plugin