$ git clone -n https://src.fedoraproject.org/rpms/python-dcrpm.git /var/lib/mock/f41-build-side-1-2834287-33683/root/chroot_tmpdir/scmroot/python-dcrpm
Cloning into '/var/lib/mock/f41-build-side-1-2834287-33683/root/chroot_tmpdir/scmroot/python-dcrpm'...
$ git fetch origin 09abfc8324bc07fa814a7085513bf2c5f4167663:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dcrpm
 * [new ref]         09abfc8324bc07fa814a7085513bf2c5f4167663 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09abfc8 convert GPLv2 license to SPDX