$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtdeclarative.git /var/lib/mock/f38-build-side-42-init-devel-570687-25910/root/chroot_tmpdir/scmroot/qt6-qtdeclarative
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-570687-25910/root/chroot_tmpdir/scmroot/qt6-qtdeclarative'...
$ git fetch origin 766d132118875fa7b3078faacfd2c0191a0bafb9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtdeclarative
 * [new ref]         766d132118875fa7b3078faacfd2c0191a0bafb9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 766d132 6.5.0