$ git clone -n https://src.fedoraproject.org/rpms/python-pyqt6.git /var/lib/mock/f42-build-side-1-3563084-46727/root/chroot_tmpdir/scmroot/python-pyqt6
Cloning into '/var/lib/mock/f42-build-side-1-3563084-46727/root/chroot_tmpdir/scmroot/python-pyqt6'...
$ git fetch origin 0b4ada68a3239f1fc03c0cafae927883a28651c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyqt6
 * [new ref]         0b4ada68a3239f1fc03c0cafae927883a28651c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b4ada6 Rebuild (qt6)