$ git clone -n https://src.fedoraproject.org/rpms/python-pyongc.git /var/lib/mock/f39-build-1586783-38210/root/chroot_tmpdir/scmroot/python-pyongc
Cloning into '/var/lib/mock/f39-build-1586783-38210/root/chroot_tmpdir/scmroot/python-pyongc'...
$ git fetch origin 1fb5985e581482ea28b09c417e7c4c422292c703:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyongc
 * [new ref]         1fb5985e581482ea28b09c417e7c4c422292c703 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fb5985 Update to 1.0.2 (fedora#2240251)