for example,
file1.png
if i add a tag1 to it,the filename auto rename to [tag1]file1.png;
if i add a tag2 to it, the filename rename to [tag2][tag1]file1.png;
if i remove the tag1 ,then the filename auto rename to [tag2]file1.png.
if i remove all tags, the filename change to file1.png