crash at `constQObject *QMetaObject::cast(const QObject *obj) const` when close window

[Michaelzhouisnotwhite]

screenshots:

Reproduction steps

1. open dockindock project
2. drag group1 to floating window

3. drag group1 into the top of minwindow
   like this:
   

4. close the window. It crash at const QObject *QMetaObject::cast(const QObject *obj) const

Env

OS: Ubuntu22.04 x11
Qt version: 5.15.2

[githubuser0xFFFF]

Thank you for your bug report - i can reproduce it. The error is not a ADS library issue but an issue with the dockindock example. The example was a third party contribution by a user (see #308). It shows some "hacked" functionality that is not part of the ADS library.

I reported the issue to the author. You have two options now: you can try to fix the example by yourself and provide a pull request or you can ask the author. If the example is not fixed within the following two weeks, I will remove it from the examples.

[githubuser0xFFFF]

The author of the dockindock example jut commited a fix for this issue to the master branch. Checkout the master branch and test if the error has been fixed.