$ git clone -n https://src.fedoraproject.org/rpms/qgnomeplatform.git /var/lib/mock/f40-build-2249932-54024/root/chroot_tmpdir/scmroot/qgnomeplatform
Cloning into '/var/lib/mock/f40-build-2249932-54024/root/chroot_tmpdir/scmroot/qgnomeplatform'...
$ git fetch origin 2799cc199f303c4344596e8272909aedc9930417:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qgnomeplatform
 * [new ref]         2799cc199f303c4344596e8272909aedc9930417 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2799cc1 Rebuild (qt5)