Scrolling up in the documentation window cause crash

Scrolling up in the documentation window cause IDE to crash silently.

• No error messages are shown before the crash.
• The modified files are unsaved.
• messages.log does not include any information about the crash.

I can always reproduce the issue when I do the following steps:

1. Place the mouse pointer on an identifier that can have a documentation (it does not have to have a documentation).
2. Press Ctrl + Shift + Space or select Source > Show Documentation.
3. After the (possibly empty) documentation window appears, scroll up before scrolling down.