search: keep typed string when switching between tabs ( i.e. artists ; albums ; tracks ; genres )

Version 3.1.7 downloaded from F-Droid

Running on Samsung SM-G361F

Android 5.1.1

Currently when user type a chain of characters ( see screenshot ) to look up in the top search box, using the magnifier icon ( example, while being on the tab tracks ), then the string/chain is erased/flushed when switching to any other tab ( artists ; albums ; genres ), forcing the user to retype the whole chain if he/she didn't pay attention which tab was active when he/started to type.

It might be nice to keep what was typed when jumping from one tab to the next.