Highlights offsets on adding new highlights

[benel]

Contrary to what we thought earlier, this bug has nothing to do with HTML page structure, it can be reproduced with a simple TXT file:

 Le soleil resonne sur le mode antique dans le choeur harmonieux des spheres.

Highlight in the following order:

• choeur
• harmonieux
• soleil

When soleilis highlighted, harmonieuxis offset.

Now highlight:

• antique

You can see that harmonieux gets more offset.

Then highlight:

• spheres

Now refresh the page. You can see that the offset of harmonieux was just a visual bug, but that spheres was created with incorrect coordinates.

Workaround

A workaround to this major bug is to refresh the page as soon as an offset appeared. Otherwise further highlights will be faulty.

[benel]

This was caused by commit dc8357075c8790f9bb20895d15b18323a06493fc.