Photos v. 1.5 in El Capitan -- difficulty searching for images by file name, Photos seems to dupe name 2x
Imported iPhoto Library into Photos v. 1.5 in El Capitan as prep for upgrading to Mojave. I then imported a folder of pics that iPhoto refused to successfully import relying on Photos option to not import any duplicates. Before I delete source folder so I don't two copies on HD, I want to make sure all new originals made it to Photos. Photos' "Last Import" shows 490 pics while source folder had over 2,000 images,. Possible 80% were dupes but want to be 100% sure.
To verify all new images are now in Photos, I'm comparing file names in source folder vs. Photos app. But in Photos' "Find" search field, after I type original file name, Photos repeats the file name multiple times, like this: "IMG_1263.JPG 1263.JPG JPG". Is the file name really changed, or did Photos find two different pics with same original file name so renames the second image? Sorry, I don't understand what is going on. Just want simple way to see file names in Photos.
iMac 27″, OS X 10.11