$ git clone -n https://src.fedoraproject.org/rpms/xfce4-battery-plugin.git /var/lib/mock/f41-build-side-1-2810780-32921/root/chroot_tmpdir/scmroot/xfce4-battery-plugin
Cloning into '/var/lib/mock/f41-build-side-1-2810780-32921/root/chroot_tmpdir/scmroot/xfce4-battery-plugin'...
$ git fetch origin 61843093aecb52ad85abb7377596b5e25258ccae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-battery-plugin
 * [new ref]         61843093aecb52ad85abb7377596b5e25258ccae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6184309 convert GPLv2+ license to SPDX