fix for annotations_no_substores() and similar functions

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "stam"
-version = "0.16.0"
+version = "0.16.1"
 edition = "2021"
 authors = ["Maarten van Gompel <[email protected]>"]
 description = "STAM is a powerful library for dealing with stand-off annotations on text. This is the Rust library."

src/api/annotationstore.rs

@@ -125,7 +125,7 @@ impl AnnotationStore {
         ResultIter::new_sorted(
             self.iter()
                 .map(|item: &TextResource| item.as_resultitem(self, self))
-                .filter(|res| self.resource_substore_map.get(res.handle()).is_some()),
+                .filter(|res| self.resource_substore_map.get(res.handle()).is_none()),
         )
     }
 
@@ -151,7 +151,7 @@ impl AnnotationStore {
         ResultIter::new_sorted(
             self.iter()
                 .map(|item: &AnnotationDataSet| item.as_resultitem(self, self))
-                .filter(|ds| self.dataset_substore_map.get(ds.handle()).is_some()),
+                .filter(|ds| self.dataset_substore_map.get(ds.handle()).is_none()),
         )
     }
 
@@ -179,7 +179,7 @@ impl AnnotationStore {
         ResultIter::new_sorted(
             self.iter()
                 .map(|a: &'a Annotation| a.as_resultitem(self, self))
-                .filter(|a| self.annotation_substore_map.get(a.handle()).is_some()),
+                .filter(|a| self.annotation_substore_map.get(a.handle()).is_none()),
         )
     }