/usr/lib/x86_64-linux-gnu/tracker-2.0/libtracker-common.so.0 is in libtracker-sparql-2.0-0 2.0.3-1ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/tracker-2.0/libtracker-common.so.0.0.0