[Lazarus] TFilenameedit onchange osx

[Andrea Mauri]

Dear all,

I noticed that
TFilenameedit onchange event is raised differently between win-linux and 
osx.
Windows and Linux behave in the same way, osx differently.

Onchange event is raised on windows and linux when click ok after file 
selection. While on osx Onchange is raised only if I directly edit the 
tfilenameedit.

Additionally, I tried onacceptfilename. It is raised when I select a 
file using the dialog but TFilenameedit.Filename = '' (win, lin, osx).

Any hints?

Andrea Mauri