fix: fix issue with sibling components being clipped. fixes callstack#527

Author: Trancever

src/components/Portal/PortalManager.js

@@ -41,7 +41,14 @@ export default class PortalManager extends React.PureComponent<{}, State> {
 
   render() {
     return this.state.portals.map(({ key, children }) => (
-      <View key={key} pointerEvents="box-none" style={StyleSheet.absoluteFill}>
+      <View
+        key={key}
+        collapsable={
+          false /* Need collapsable=false here to clip the elevations, otherwise they appear above sibling components */
+        }
+        pointerEvents="box-none"
+        style={StyleSheet.absoluteFill}
+      >
         {children}
       </View>
     ));

src/components/__tests__/__snapshots__/Portal.test.js.snap

@@ -19,6 +19,7 @@ Array [
     </Text>
   </View>,
   <View
+    collapsable={false}
     pointerEvents="box-none"
     style={
       Object {