Saving new composition does not ask for name but overwrites previous composition

Steps to reproduce:{}

• Create new empty project
• In Effect Composer, add effect, e.g. Snowing
• Click "Add new composition" button
• -> Save changes dialog opens, as expected, click "Save"
• Save with default "Effect01" name
• -> new, clean composition opens as expected
• Add effect, e.g. Rain
• Click "Save current composition"
• -> Expected is that "Save changes" dialog opens, suggesting "Effect02" name for the new composition. Instead, effect is saved without asking with "Effect01" name, overwriting it.