clashing with linkedIn companion?

Seem than linkedIn companion clashes with floatnotes.. I activated Linkedin after a while I didn't use it and the "hide notes" button stopped working... after removing linkedin the button works again...

I've to do some more testing as soon as I've some more spare time.. by now I'll keep linkedIn off

Reproduce the issue by enabling the LinkedIn companion alongside Floatnotes and checking whether the “hide notes” button stops working. Start by identifying the code path for that button and compare behavior with the companion disabled; done means the button works with both extensions enabled, with a regression test or documented reproduction if the project supports one.

索引モデルが issue の本文から書いたものです。