Steps to reproduce:

1. Open Notepad++. Enter any text and put the cursor at the very front (offset=0). Make sure nothing is selected.
2. Press NVDA+Control+Z to open Python console.
3. Type:

t=focus.makeTextInfo('selection');t.collapse(end=True);t._startOffset, t._endOffset

Actual behavior:

In the console you see something like:

(78, 78)

Which indicateds that calling collapse() moves TextInfo. In fact, textInfo appears to be moved to the next paragraph.

Expected behavior:

A call to TextInfo.collapse() should not move textInfo. As the name suggests it should only collapse. So I would expect to see the follwoing output in the console:

(0, 0)

NVDA logs, crash dumps and other attachments:

N/A

System configuration

NVDA installed/portable/running from source:

N/A

NVDA version:

2025.1

Windows version:

Windows 11

Name and version of other software in use when reproducing the issue:

N/A

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

Root cause commit: 70cd311.
CC Author: @nvdaes

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes