$ git clone -n https://src.fedoraproject.org/rpms/python-epc.git /var/lib/mock/f41-build-side-2-python-2693877-30279/root/chroot_tmpdir/scmroot/python-epc
Cloning into '/var/lib/mock/f41-build-side-2-python-2693877-30279/root/chroot_tmpdir/scmroot/python-epc'...
$ git fetch origin 1cb0d309b60ea75cb997d553fe6c4b7f90bfc781:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-epc
 * [new ref]         1cb0d309b60ea75cb997d553fe6c4b7f90bfc781 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cb0d30 convert GPLv3+ license to SPDX