add search event check to activate search fragment

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -1054,7 +1054,7 @@ public int onBrowseUp() {
         mFile = target;
         setFileDepth(mFile);
 
-        if (mFile.isRootDirectory() && currentSearchType != NO_SEARCH) {
+        if (mFile.isRootDirectory() && currentSearchType != NO_SEARCH && isSearchEventSet(searchEvent)) {
             searchFragment = true;
         }