$ git clone -n https://github.com/fedora-riscv/qt6-qtwebengine.git /var/lib/mock/f39-build-2058756-49142/root/chroot_tmpdir/scmroot/qt6-qtwebengine
Cloning into '/var/lib/mock/f39-build-2058756-49142/root/chroot_tmpdir/scmroot/qt6-qtwebengine'...
$ git fetch origin ce707d392e8cb48cd9b656460b435c4faf260389:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/qt6-qtwebengine
 * [new ref]         ce707d392e8cb48cd9b656460b435c4faf260389 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce707d3 Merge remote-tracking branch 'fedoraproject/f39' into f39-rv64