Nothing more than that: i thought that that was a function to copy the currently selected tag in the current image to every other image in the dataset, but instead it takes all the tags of the current image, even the unselected ones, and replaces all other tag lists with this one, so every image ends in having the same tag list. Also this operation is not undoable so i've lost hours of work :( I think it could be a good idea to rename it correctly
Image:
starik222
commented
4 months ago 
gpl666
Nothing more than that: i thought that that was a function to copy the currently selected tag in the current image to every other image in the dataset, but instead it takes all the tags of the current image, even the unselected ones, and replaces all other tag lists with this one, so every image ends in having the same tag list. Also this operation is not undoable so i've lost hours of work :( I think it could be a good idea to rename it correctly Image: