$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtdatavis3d.git /var/lib/mock/f41-build-811737-147521/root/chroot_tmpdir/scmroot/qt5-qtdatavis3d
Cloning into '/var/lib/mock/f41-build-811737-147521/root/chroot_tmpdir/scmroot/qt5-qtdatavis3d'...
$ git fetch origin 45b52f888488914c9a5f02789cac675c41c3ea49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtdatavis3d
 * [new ref]         45b52f888488914c9a5f02789cac675c41c3ea49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45b52f8 5.15.14