$ git clone -n https://src.fedoraproject.org/rpms/pe-bear.git /var/lib/mock/f42-build-side-1-3502926-45979/root/chroot_tmpdir/scmroot/pe-bear
Cloning into '/var/lib/mock/f42-build-side-1-3502926-45979/root/chroot_tmpdir/scmroot/pe-bear'...
$ git fetch origin 1f0a4beb9358000bad6dc8a71a94db74a59868bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pe-bear
 * [new ref]         1f0a4beb9358000bad6dc8a71a94db74a59868bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f0a4be Updated to version 0.7.0.4.