Photo Mechanic search tab multiple instances of the same image

[centredart]

Hello,
Photo Mechanic / search tab 
For some keyword searches in contact sheet I am getting a multiple instances of the some images, see attached
What could be a reason for such results?
Kind regards,

[Bob M]

 ... because the photo is included in multiple different catalogs?

[centredart]

Correct. It happened by mistake that some images were included in multiple different catalogs.

Is there a good way to avoid such mistakes ?

[Kirk Baker]

There's no safeguards--it is a powerful feature to support multiple catalogs at the same time, but it can cause unintended duplicates.  Either be aware of what catalogs are active for add/modify or use a single catalog.  The catalog system doesn't second-guess your intentions.

We could add a confirmation box for when multiple catalogs are selected to be added/modified, but some may find that intrusive.  A preference could be added to turn the warnings off.

-Kirk