$ git clone -n https://src.fedoraproject.org/rpms/qt.git /var/lib/mock/f39-build-1866185-42552/root/chroot_tmpdir/scmroot/qt
Cloning into '/var/lib/mock/f39-build-1866185-42552/root/chroot_tmpdir/scmroot/qt'...
$ git fetch origin c462f6ebe5494d9f4b8d51d03aa42c689f3843b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt
 * [new ref]         c462f6ebe5494d9f4b8d51d03aa42c689f3843b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c462f6e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild