$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtshadertools.git /var/lib/mock/f40-build-2149236-50890/root/chroot_tmpdir/scmroot/qt6-qtshadertools
Cloning into '/var/lib/mock/f40-build-2149236-50890/root/chroot_tmpdir/scmroot/qt6-qtshadertools'...
$ git fetch origin 0dfedf4d19cd2c3ad2dc9656a57830c2b3c8dc1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtshadertools
 * [new ref]         0dfedf4d19cd2c3ad2dc9656a57830c2b3c8dc1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dfedf4 6.6.1