Sweep Parameter: Removed parameter still displayed in log

Environment:

Windows 10, 64-bit

OpenTAP 9.11.0-rc.2 (not a regression, reproduced on 9.10)

Steps to reproduce:

1. Add a Sweep Parameter with a Dialog child
2. Parameterize on Sweep: Title and Message
3. Open Sweep values, add values for both parameters
4. Run the test plan
5. Remove parameter Message
6. Run the test plan

Actual result:

Message is still displayed in the log as a parameter

Expected result:

Other remarks: