Environment:

Windows 10
InDesign 15.0.3
Acrobat Pro DC 20.0

Steps to reproduce:

1. Create a new Document in InDesign
2. Add a text frame and filler text

3. Export PDF No. 1

4. Add a soft return / forced line break somewhere in the filler text (e.g. between "evendae." and "Et", line 5)

5. Export PDF No. 2

6. Compare PDF No. 1 and PDF No. 2 in Acrobat Pro (compare everything, not "text only")

Expected result

The soft return should be recognized as a change.

Observed result

The soft return is not recognized as a change in the comparison, despite impacting the text flow significantly.