[4.x] Fix filteritems on pages with multiple contentlisting tiles

CHANGES.rst

@@ -4,7 +4,8 @@ Changelog
 4.1 (unreleased)
 ----------------
 
-- Nothing changed yet.
+- fix filteritems for `FilterTile.content_selector` when multiple contentlisting tiles are on one page.
+  [petschki]
 
 
 4.0 (2022-05-10)
@@ -56,7 +57,6 @@ Bug Fixes:
 - Fixed searches for only non-alphanumeric characters causing an exception to be displayed.
   [JeffersonBledsoe]
 
-
 Other:
 
 - Code-Style Black and Isort

src/collective/collectionfilter/tiles/__init__.py

@@ -98,16 +98,13 @@ def __init__(self, context):
         """Adapt either collections or contentlisting tile. The name is sorted content selector"""
         self.context = context
 
-        self.selectContent("")  # get first tile
-
-        if self.tile is None:
-            # Could still be a ILayoutAware collection
-            try:
-                self.collection = ICollection(self.context)
-            except TypeError:
-                self.collection = None
-        else:
-            self.collection = self.tile  # to get properties
+        # self.context might not be adaptable
+        # make sure you select the right content with
+        # selectContent(selector) after initialization
+        try:
+            self.collection = ICollection(self.context)
+        except TypeError:
+            self.collection = None
 
     def selectContent(self, selector=None):
         """Pick tile that selector will match, otherwise pick first one.
@@ -129,7 +126,10 @@ def selectContent(self, selector=None):
             # TODO: what if the class is inside a special template? Just pick first?
             # none of the selectors worked. Just pick any and hope it works?
             self.tile = tile
-        if self.tile is not None or self.collection is not None:
+        if self.tile is not None:
+            # we have to set self.collection always to self.tile to get the
+            # correct query
+            self.collection = self.tile
             return self
 
     @property