Hangs while creating a new file with FAR manager

A new file is created within FAR manager with Shift-F4. The program hangs when I am trying to close the edit window. It does not matter whether the file is going to be created on the local or the remote computer.
Version of FAR: 1.70 beta 5 build 1634
Version of WinSCP plug-in: 1.5.1
Such a problem does not exit if plug-in version 1.4.2 is used.

It is bug of the FAR 1.70 beta 5. Please upgrade to final version.