Effect breaks if further edits are done after opening code editor for the whole effect

Steps to reproduce:

• Create a 3D project
• In Effect composer, add effect node Swirl
• Click "Save current composition" -> Save
• Drag and drop effect from Assets to 2D View
• Add another effect node Colorize to the effect
• Click "Save current composition"
• -> Changes are applied: shown in Effect composer preview + 2D View
• Open Code editor (for the whole effect)
• Close it without doing any modifications
• Remove Colorize effect node from the effect
• Click "Save current composition"
• -> Preview image in effect composer disappears, 2D view does not show the effect or view3D anymore
• Reproduces also when doing changes with code editor for effect node: e.g. add colorize effect, use code editor to change fragColor to vec4(1.0,0.0,0.0,1.0);, open "main" code editor and close it, change fragColor to vec4(0.0,1.0,0.0,1.0); -> effect breaks