$ git clone -n https://src.fedoraproject.org/rpms/qt3.git /var/lib/mock/f45-build-34015-676/root/chroot_tmpdir/scmroot/qt3
Cloning into '/var/lib/mock/f45-build-34015-676/root/chroot_tmpdir/scmroot/qt3'...
$ git fetch origin 735ac139a01cc91eecb8dca608a46022762c597e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt3
 * [new ref]         735ac139a01cc91eecb8dca608a46022762c597e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 735ac13 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild