$ git clone -n https://src.fedoraproject.org/rpms/pcp.git /var/lib/mock/f41-build-side-2-python-2729001-30801/root/chroot_tmpdir/scmroot/pcp
Cloning into '/var/lib/mock/f41-build-side-2-python-2729001-30801/root/chroot_tmpdir/scmroot/pcp'...
$ git fetch origin 035c027058c55d606ae731db56dca7092f2ba39d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcp
 * [new ref]         035c027058c55d606ae731db56dca7092f2ba39d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 035c027 Update to latest community sources