[CRASH] [REG 12.0.2->13.0.0] Qt Creator crashes during search especially when going to first/last item

Qt Creator crashes during  search especially when going to first/last item 

STEPS:

• Install and open Qt Creator 13 beta2-66
• Go to Help and select Index in the combo box
• Search for some qml type or function, for e.g. qsTr
• From the dialog select one of the Qt version shown (6.6.2 in my case)
• Observe that Qt QML Type page is opened, but the editor does not jump to qsTr() function documentation. It stays on the top

• Now click on the Qt QML Type page in the editor, and click 'Ctrl+F'
• Type 'qsTr' in the Find box and click on 'Find Next' button
• After being on first search result, click on 'Find Previous' .
• Observe that Qt Creator crashes

• Search for 'windowOpacity' from Help tab.
• Click on the QWidget page and press 'Ctrl+F' to start a new search.
• Keep clicking on 'Find Next' or 'Find Previous'. 
• Observe that Qt Creator crashes.
• Not able to deduce pattern, since the crash is not after first/last search result

OBSERVED:

• Qt Creator crashes when clicked on 'Find Next' after being on last search result in the page
• Qt Creator crashes when clicked on 'Find Previous' after being on first search result in the page
• Crash is also observed when trying to search QWidget property even though not being on first/last search result.

EXPECTED:

• Qt Creator should not crash
• Qt Creator should show results in circular manner.
  ie, it should jump to first search result when the last matching text is reached in the page, and vice versa

Attachments:
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QtCreatorCrashDuringSearch.mp4