Describe the Bug

New Campaign Properties dialog #5657 due in 1.19 closes and loses any changes if there are sight/light/aura syntax errors and the user presses OK.

Previous behavior (i.e. in 18.5) is to stay open and allow the user to correct the syntax errors, or to click Cancel.

To Reproduce

Run Develop or a current nightly build
Open Campaign Properties
Add an incorrect sight, light, or aura definition (e.g. error: blah)
Click OK
Observe Feedback dialog, press OK
Observe Error dialog, press OK
Campaign Properties dialog closes and any changes are lost

Expected Behaviour

New Campaign Properties dialog to stay open after syntax errors detected to give the user the opportunity to fix the syntax errors, or to click Cancel.

Screenshots

Then Campaign Dialog closes.

MapTool Info

Develop, current nightly builds

Desktop

No response

Additional Context

Found when developing new custom halos #5824, as this was also affected by the CD dialog closing when syntax errors were detected.