$ git clone -n https://src.fedoraproject.org/rpms/qalculate-gtk.git /var/lib/mock/f41-build-side-1-2662521-28809/root/chroot_tmpdir/scmroot/qalculate-gtk
Cloning into '/var/lib/mock/f41-build-side-1-2662521-28809/root/chroot_tmpdir/scmroot/qalculate-gtk'...
$ git fetch origin 0828830f9ae29d436b43a1ed0d0f312ec754f582:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qalculate-gtk
 * [new ref]         0828830f9ae29d436b43a1ed0d0f312ec754f582 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0828830 convert GPLv2+ license to SPDX