Andrey Skvortsov <andrej.skvortzov@gmail.com> [Tue, 25 Sep 2018 19:00:03 +0300] rev 2343
Don't need to call extra _init_
_init_ is already called for value in infos["elmt_type"]["initial"]().
Additional _init_() creates second set of child element and that
creates unusable xml project.
This regression cause by not well tested commit "Proper fix for error
'object has no attribute 'getSlave' in EtherCAT extension" (96ca6b056c55595f71bfaca9f54b9e8646460c23)
Andrey Skvortsov <andrej.skvortzov@gmail.com> [Tue, 25 Sep 2018 18:31:17 +0300] rev 2342
Fix black background in preview window
Problem found and fixed on GNU/Linux
wxWidgets 3.0 built with GTK3+ support and running on Xorg.