Hiding a category in one module can hide it from other modules that have the same category

Qt Quick3D, Qt Quick3D Effects and Qt Quick3D Materials all have category "Qt Quick 3D Custom Shader Utils". If this category is hidden in one module and then other modules are removed/added later, they hide the Qt Quick 3D Custom Shader Utils category in those modules as well. 

Steps to reproduce:

• Add QtQuick3D,Qt Quick3D Effects and Qt Quick3D Materials modules to a project
• Hide "Qt Quick 3D Custom Shader Utils" category in QtQuick3D module
• -> does not hide same category in QtQuick3D Effects or Materials, as expected
• Remove Effects module
• -> Shader Utils category is hidden in Materials module now, would expect it to stay visible
• Add Effects module
• -> Shader Utils category is hidden in Effects module, would expect to be visible