As in Version 2.x I could enter the tag-names in the search-text-field indicate with a "plus" before and tagspaces looked up all files with this tags in it

"+ebook +gradle"

"+" indicates a tag

The case of the search tag was ignored. I could search like this with all the same result:
"+ebook +GRAdle"
"+Ebook +Gradle"

Now I have to enter these tags in a separate search field. Is there a technical reason for this change? Please provide this old fast and easy way to search for the information again in >=3.x Version.