Copy-Paste bug and program freeze

[PordyHUN]

Description of the Issue

The program freezes when you try copypaste an ALT selected text part, to a such area were the lines are not fit the screen.

Steps to Reproduce the Issue

1. Open two file in separete window
2. Select multiple lines area with ALT
3. Try copypast to the other window, where there lines are longer than the screen size and splitted to 2 lines.

Expected Behavior

Paste the copied part

Actual Behavior

Program not responding, loosing all changes.

Debug Information

Notepad++ v7.7.1 (32-bit)
Build time : Jun 16 2019 - 21:14:50
Path : C:\Program Files (x86)\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS : Windows 10 (64-bit)
Plugins : AutoSave.dll BracketsCheck.dll ComparePlugin.dll mimeTools.dll NppConverter.dll NppExport.dll

Check out the video, my explanation maybe isnt clear, but you will see what i am talking about.
notepad++bug.zip

[dail8859]

Update Notepad++ to the latest version.

Also try it without plugins to see if it is a plugin causing it. To disable plugins temporarily, you can launch it through the command line:

"C:\Program Files (x86)\Notepad++\notepad++.exe" -noPlugin

[Uhf7]

I can reproduce it in 7.8.8 too. Without plugins. The endless loop (?) seems to be in Scintilla.
_callWindowProc(_scintillaDefaultProc, hwnd, Message, wParam, lParam); never returns from the PASTE key combination.

Rectangular selections don't work well with word wrap on anyway. See issue #5684.