$ git clone -n https://src.fedoraproject.org/rpms/libmodulemd.git /var/lib/mock/f31-build-99875-33206/root/chroot_tmpdir/scmroot/libmodulemd
Cloning into '/var/lib/mock/f31-build-99875-33206/root/chroot_tmpdir/scmroot/libmodulemd'...
$ git reset --hard ac46535dd444116ab3f2134bf9527730d6667297
HEAD is now at ac46535 Add missing BuildRequires