$ git clone -n https://src.fedoraproject.org/rpms/qpdfview.git /var/lib/mock/f40-build-1710804-24610/root/chroot_tmpdir/scmroot/qpdfview
Cloning into '/var/lib/mock/f40-build-1710804-24610/root/chroot_tmpdir/scmroot/qpdfview'...
$ git fetch origin 39090171bed5f1b40f72ca7da71726ef08e6033b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qpdfview
 * [new ref]         39090171bed5f1b40f72ca7da71726ef08e6033b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3909017 Rebuild against mupdf 1.24.6