Deny changesets with wrong linenumber

https://github.com/ether/etherpad-lite/issues/2215
so applyToText is called via applyToAText everywhere (easysync_tests.js and one commented line in ace2_inner.js) and applyToAText is called in changesettracker.js at https://github.com/ether/etherpad-lite/blob/develop/src/static/js/changesettracker.js#L125 and https://github.com/ether/etherpad-lite/blob/develop/src/static/js/changesettracker.js#L248 and in db/Pad.js at https://github.com/ether/etherpad-lite/blob/develop/src/node/db/Pad.js#L65 and https://github.com/ether/etherpad-lite/blob/develop/src/node/db/Pad.js#L206 
so in this places I must ensure that a thrown error is catched, right?