Model Parameters in output config not reloading between analyses

[benhayes21]

**IMPORTANT: Please apply the relevant labels, for example if this issue is needed as a backported fix add the label LTS fix (Long term support fix)

Issue Description

when creating a new analysis and navigating to the output screen, the details from the previous analysis are cached

Steps to Reproduce (Bugs only)

1. create an analysis
2. run it
3. create a new analysis on a different model
4. inspect the output settings
   

Version / Environment information

1.11.5rc1

Example data / logs

[RolandASc]

If the model doesn't have any specific params, i.e. no event set, event occurrence and no other custom additional params, we currently skip the reloading here. This can be fixed easily.

A separate issue is that we do not clear / update the entries for the generic params loss threshold and the 3 new list config elements. Shall we do this in any case (re-run, template, new), or is there a purpose of keeping them when switching to a new analysis that doesn't have any previous configuration yet? Because maybe someone would like to keep running with the same set of values for the 3 new list configs?

Either way is fine from an implementation perspective, just let me know @benhayes21

[benhayes21]

i think clear it