Fix bug with scrolling editor while typing
Closes #326 (closed)
- use complex item set id as a key for the leading content editor, avoiding rerendering due to key modification because of changing content
QA Notes:
To reproduce the issue:
- on staging create a complex item set that contains an image (add image via toolbar, not copy/paste).
- create item and set its complex item set to the one created in point 1
- add more content so that the editor becomes scrollable
- when modifying content (or metadata) the editor scrolls back to the top even if you're scrolled at the bottom