$ git clone -n https://src.fedoraproject.org/rpms/python-qrcode.git /var/lib/mock/f40-build-837056-15137/root/chroot_tmpdir/scmroot/python-qrcode
Cloning into '/var/lib/mock/f40-build-837056-15137/root/chroot_tmpdir/scmroot/python-qrcode'...
$ git fetch origin b3cbe2a30e9251babad32d95772ed169c2dcd859:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-qrcode
 * [new ref]         b3cbe2a30e9251babad32d95772ed169c2dcd859 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3cbe2a Fix requires