The following bug has been logged on the website:
Bug reference: 11473
Logged by: Eugene Pliskin
Email address: pliskin(at)cognitive(dot)ru
PostgreSQL version: 9.3.5
Operating system: Windows 7 x64 Russian
Description:
Using pgAdmin version 1.18.1 (Jul 22 2014). Select user function for
debugging and open dialog to enter arguments. Enter some russian text into
function argument grid, for example "русский текст". When pressing OK,
debugger does not accept input and asks to enter this argument again.