$ git clone -n https://src.fedoraproject.org/rpms/libfixposix.git /var/lib/mock/f31-build-68756-30222/root/chroot_tmpdir/scmroot/libfixposix
Cloning into '/var/lib/mock/f31-build-68756-30222/root/chroot_tmpdir/scmroot/libfixposix'...
$ git reset --hard b4e9dd55e50c782a60913b8acfbd877fb853a649
HEAD is now at b4e9dd5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild