Some GEGL based contents won't accept translation

[ghost]

GIMP version: 2.10.8

Operating System: Ubuntu 18.04/Ubuntu 18.10

Package: AppImage

The Italian (it) language locale has whole translated GEGL packet (https://l10n.gnome.org/languages/it/gnome-gimp/ui/). But, some GEGL based contents appear untranslated.

(on the Italian locale)

Is the bug reproducible? [Always ]

Reproduction steps:

• Change your locale to Italian
• Open an Image
• Choose Menu - Colori - Temperatura Colore

Expected result: All sentences must have been translated.

Actual result: There are some untranslated sentences.

I have opened a bug report on GNOME/GIMP page, and they believe this is an AppImage related bug: (https://gitlab.gnome.org/GNOME/gimp/issues/2789)

[ghost]

@aferrero2707 I think GEGL is not following changed language.