I know that many prompts I am asking for are not granted (well, some are, indeed), but I never give up
I agree there should be a prompt/warning.
As a work around, maybe use File>Replace document feature for the modified file?
No matter the Replace document feature, I find it a sound proposition.
Yes, the Replace document feature should be used for the above scenario, instead of Add document. Soon, CT will have the protection for accidental overwriting of the existing source document which has the same name as the newly added document. Thanks!