$ git clone -n https://src.fedoraproject.org/rpms/qalculate-gtk.git /var/lib/mock/f45-build-33876-674/root/chroot_tmpdir/scmroot/qalculate-gtk
Cloning into '/var/lib/mock/f45-build-33876-674/root/chroot_tmpdir/scmroot/qalculate-gtk'...
$ git fetch origin 4250a1524024e1d873f8fa6d8149d6683e3063cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qalculate-gtk
 * [new ref]         4250a1524024e1d873f8fa6d8149d6683e3063cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4250a15 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild