$ git clone -n https://src.fedoraproject.org/rpms/pcp.git /var/lib/mock/f42-build-864579-172462/root/chroot_tmpdir/scmroot/pcp
Cloning into '/var/lib/mock/f42-build-864579-172462/root/chroot_tmpdir/scmroot/pcp'...
$ git fetch origin 8db1925bff8920fcba14905f2feb22630c8fe179:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcp
 * [new ref]         8db1925bff8920fcba14905f2feb22630c8fe179 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8db1925 Rebuild for libarrow 18