Description:
When editing the characters where have the "Double-Lined" style enabled, the line wrapping inside the doubled lined region goes stubborn and odd. Nearly-always-reproducible with CJK letters.

Steps to Reproduce:
1. Define a Double-Lined character style.
2. Apply it to some characters, the long the better.
3. Let it cross the end of the line (ie. let the double-lined text wrap into two major lines).
4. Save the file.
5. Try to insert more chars into the double-lined text at its first major line, and see how the later characters wrap into the second major line.

Actual Results:
It seems that there is "stubborn" invisible line wrapping control marks refuse to change its position automatically.

Expected Results:
Should auto wrap as natually.


Reproducible: Always


User Profile Reset: No

Additional Info:
Current walkaround (but annoying):
1. Select the entire double-lined text;
2. Cut;
3. At position, paste as plain text.