$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtshadertools.git /var/lib/mock/f40-build-2339621-59663/root/chroot_tmpdir/scmroot/qt6-qtshadertools
Cloning into '/var/lib/mock/f40-build-2339621-59663/root/chroot_tmpdir/scmroot/qt6-qtshadertools'...
$ git fetch origin b3e652a4a806325951e6bd0af961cfc9c61f2d99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtshadertools
 * [new ref]         b3e652a4a806325951e6bd0af961cfc9c61f2d99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3e652a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild