Weird editor behaviour when using Copy & Paste on text in Markdown syntax

[RotterMartin]

Strange editor behaviour when entering text (in Markdown syntax) and doing copy&paste. Text is pasted to wrong positions, or gets lost, or parts of text can't be selected with cursor any more.
Reproduce: Just enter some text using ## and * syntax, and do some edits, copy & paste, etc.,

[dest4]

I experienced the problem when there were empty items in the list.

- blah blah
- 
* Where is Bryan ?

* Where is Bryan ? is displayed just below - blah blah (2nd line), but is clickable and selectable at the 3rd line.

The effect can accumulate in a document, making the edition very difficult and confusing.

Workaround: ensure there are no empty items.