parameters > edit screen can be made inaccessible after manual script clear

[dndrks]

repro steps

• connect to maiden for error monitoring
• load a script with parameters (awake works well)
• navigate to PARAMETERS > EDIT
• use E2 to scroll down deep into the script's params (eg. on awake, nav down to probability)
• turn E1 CCW navigate to main menu and CLEAR script with K1+K3
• try to turn E1 CW to navigate back to PARAMETERS > EDIT

experienced behavior

• screen will seemingly stay stuck on main menu (I think it does move to PARAMETERS > EDIT, but can't render due to below)
• maiden prints:

lua: /home/we/norns/lua/core/paramset.lua:357: invalid paramset index: 56
stack traceback:
	[C]: in function 'error'
	/home/we/norns/lua/core/paramset.lua:357: in function 'core/paramset.lookup_param'
	/home/we/norns/lua/core/paramset.lua:301: in function 'core/paramset.t'
	/home/we/norns/lua/core/menu/params.lua:410: in function 'core/menu/params.redraw'
	/home/we/norns/lua/core/menu/params.lua:608: in field 'event'
	/home/we/norns/lua/core/metro.lua:169: in function </home/we/norns/lua/core/metro.lua:166>

• turn E2 CCW and you'll suddenly see the PARAMETERS > EDIT menu
• turn E2 CW, but you won't be able to navigate past REVERB
• if you try to press K2 to back out to parent PARAMETERS menu with REVERB selected, you won't be able to and maiden will print additional errors about an invalid paramset index
• you'll need to turn E2 CCW to resurface the params and select LEVELS
• you can now press K2 to back out to parent PARAMETERS menu
• select EDIT and everything is now sorted

[tehn]

seems like a manual script clear should just reset the position of the param views. do you want to try to tackle this? could be a one-line fix, and you'd learn how the menu works a little :)

[tehn]

also--- this is a pretty wild edge case given script CLEAR is not a common state which would require param nav... but agreed, it should be fixed