BlElement crashes occurs when using inform

[ELePors]

Target : Pharo 13.1.0
With Latest Bloc + Toplo loaded

TO REPRODUCE BUG WITH THIS SAMPLE : you have to click multiple times quickly on the select value again and again.

| select |
select := ToSingleSelectElement new.
1 to: 10 do: [ :i |
select popupListElement dataAccessor add: ('choice' , i asString) ].
select selecter selectIndex: 1.
select popupListElement addEventHandlerOn: ToListPrimarySelectionChangedEvent do: [ :ev | self inform: 'click' ].
select openInSpace

When clicking on the select element sucessively a bug regulary opens in Pharo main window like this one :

When removing inform in our pharo prototypes, this kind of bugs does not occurs. We reproduced the bug on this simple sample.

@tinchodias @tesonep : as we discussed all together.

[tinchodias]

I get an error maybe 10% of the executions. I get a different error because I'm on a Pharo 14, probably: ByteSymbol(Symbol)>>handleDoesNotUnderstand:to:

[tinchodias]

Also: ToInstallStateNotQueuedError

[tinchodias]

In other images I wasn't able to reproduce the begurrer. I suspect I only reproduced in P13.

In any case, inform: performs Morphic World stuff, which was its own Process, and the Bloc event handler is executed in another the Bloc loop Process. A way to solve this is defer this way:

| select |
select := ToSingleSelectElement new.
1 to: 10 do: [ :i |
select popupListElement dataAccessor add: ('choice' , i asString) ].
select selecter selectIndex: 1.
select popupListElement
    addEventHandlerOn: ToListPrimarySelectionChangedEvent
    do: [ :ev | UIManager default defer: [ UIManager default inform: 'click' ] ].
select openInSpace

Please check @ELePors

--- EDIT: use UIManager default

[ELePors]

I'll check, thanks @tinchodias