$ git clone -n https://src.fedoraproject.org/rpms/qt6-qt5compat.git /var/lib/mock/f39-build-1746380-41412/root/chroot_tmpdir/scmroot/qt6-qt5compat
Cloning into '/var/lib/mock/f39-build-1746380-41412/root/chroot_tmpdir/scmroot/qt6-qt5compat'...
$ git fetch origin 25aac66c4c5768bc48276e0540c8bf06ce020ae5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qt5compat
 * [new ref]         25aac66c4c5768bc48276e0540c8bf06ce020ae5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25aac66 6.6.0