[GREENFOOT-849] Greenfoot.ask in World-constructor not shown / blocking World-construction

One of my students created a scenario where in the constructor some code like

{{this.username = Greenfoot.ask("What's your name?")}}

is used. In most cases the project does not compile due to "World needs compiling". I can open classes, change everything etc. It seems that the input-dialogue somehow is hidden and waits for being sent.

I tried to duplicate the project even manually, and it worked without problems. But after a few recompilations it showed the same behavior.

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Issue metadata

• Issue type: Bug
• Priority: Low
• Fix versions: 3.7.0