error with QT_GUI_TAB_Widget in GR 3.8.1

The QT_gui_Tab_Widget offers in the Properties Dialog a tab "Advanced".
If I fill in an Alias String, e.g. "osc" the compiling of the GRC-File
breaks with an error:

File "/home/hartje/Dokumente/afu/grc/FM38_RTL.py", line 285, in main
    tb = top_block_cls()
  File "/home/hartje/Dokumente/afu/grc/FM38_RTL.py", line 102, in __init__
    self.qtgui_tab_widget_0.set_block_alias("osc")
AttributeError: 'QTabWidget' object has no attribute 'set_block_alias'

>>> Done (return code 1)

Workaround:

no string fill in in the Alias-string

May be, that one of the maintainers can fix it

--
mit freundlichen Grüßen
M. Hartje

--
Prof. Dr.-Ing. Michael Hartje
Labor Hochspannungstechnik / Labor elektrische Messtechnik
Neustadtswall 30;
D-28199 Bremen
Tel +49 421 5905-3444 FAX +49 421 5905-3476