Why is your CustomRules elements.delete being called when you click an element as well as when you try to delete it?

[vesper8]

I'm trying to modify the behaviour of your CustomRules here

https://github.com/moon-studio/vite-vue-bpmn-process/blob/ba2b936157e35af86fa4e1b628b41bafd7dd4bf5/src/additional-modules/Rules/CustomRules.ts#L13

Currently it seems like this code is being executed, not only when you attempt to delete an element but every time you select any element.. which is problematic because I want to intercept the deletion of an element at the moment someone tries to delete it but currently I cannot seem to differentiate between when a user actually tries to delete something, and when they have just clicked on it (selected it).

Can you explain this behaviour, and possibly tell me how I can "do something" only when a user is actually attempting to delete something?

Many thanks!