$ git clone -n https://src.fedoraproject.org/rpms/dtk6log.git /var/lib/mock/f41-build-837127-158978/root/chroot_tmpdir/scmroot/dtk6log
Cloning into '/var/lib/mock/f41-build-837127-158978/root/chroot_tmpdir/scmroot/dtk6log'...
$ git fetch origin 970bb4b1892c192d170da23891a59e93582bd693:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dtk6log
 * [new ref]         970bb4b1892c192d170da23891a59e93582bd693 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 970bb4b initial import; rhbz#2298213