Distinguish non-breaking spaces from regular spaces in editor and code

1. Insert a non-breaking space by using one of the following methods:

• "Insert Symbol" tool
• Insert   manually into the code.
  2. After saving, line breaking is inhibited as expected.
  3. Reopen the editor: You can't distinguish non-breaking spaces from regular spaces.
  4. Check in XHTML code: You can't distinguish non-breaking spaces from regular spaces.

Expectation:
Distinguish regular spaces from non-breaking spaces is possible for controlling line-breaking in particular editing cases.

Problem:
No monitoring checking possible for editors and reviewers.