$ git clone -n https://src.fedoraproject.org/rpms/mupdf.git /var/lib/mock/f33-build-141677-42610/root/chroot_tmpdir/scmroot/mupdf
Cloning into '/var/lib/mock/f33-build-141677-42610/root/chroot_tmpdir/scmroot/mupdf'...
$ git reset --hard 134f257521d39b8f7ed585db2a85bfbe7ceb40d6
HEAD is now at 134f257 fix build with gcc 10