Do not filter the status collection after muting and blocking (#5815)

Filtering the status collection wipes out even the profiles of muted and
blocked accounts. However, the behavior is inconsistent with the server-
side behavior.

app/javascript/mastodon/reducers/contexts.js

+import {
+  ACCOUNT_BLOCK_SUCCESS,
+  ACCOUNT_MUTE_SUCCESS,
+} from '../actions/accounts';
 import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
 import { TIMELINE_DELETE, TIMELINE_CONTEXT_UPDATE } from '../actions/timelines';
 import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
@@ -31,6 +35,12 @@ const deleteFromContexts = (state, id) => {
   return state;
 };
 
+const filterContexts = (state, relationship) => {
+  return state.map(
+    statuses => statuses.filter(
+      status => status.get('account') !== relationship.id));
+};
+
 const updateContext = (state, status, references) => {
   return state.update('descendants', map => {
     references.forEach(parentId => {
@@ -49,6 +59,9 @@ const updateContext = (state, status, references) => {
 
 export default function contexts(state = initialState, action) {
   switch(action.type) {
+  case ACCOUNT_BLOCK_SUCCESS:
+  case ACCOUNT_MUTE_SUCCESS:
+    return filterContexts(state, action.relationship);
   case CONTEXT_FETCH_SUCCESS:
     return normalizeContext(state, action.id, action.ancestors, action.descendants);
   case TIMELINE_DELETE:

app/javascript/mastodon/reducers/statuses.js

@@ -22,10 +22,6 @@ import {
   TIMELINE_DELETE,
   TIMELINE_EXPAND_SUCCESS,
 } from '../actions/timelines';
-import {
-  ACCOUNT_BLOCK_SUCCESS,
-  ACCOUNT_MUTE_SUCCESS,
-} from '../actions/accounts';
 import {
   NOTIFICATIONS_UPDATE,
   NOTIFICATIONS_REFRESH_SUCCESS,
@@ -88,18 +84,6 @@ const deleteStatus = (state, id, references) => {
   return state.delete(id);
 };
 
-const filterStatuses = (state, relationship) => {
-  state.forEach(status => {
-    if (status.get('account') !== relationship.id) {
-      return;
-    }
-
-    state = deleteStatus(state, status.get('id'), state.filter(item => item.get('reblog') === status.get('id')));
-  });
-
-  return state;
-};
-
 const initialState = ImmutableMap();
 
 export default function statuses(state = initialState, action) {
@@ -139,9 +123,6 @@ export default function statuses(state = initialState, action) {
     return normalizeStatuses(state, action.statuses);
   case TIMELINE_DELETE:
     return deleteStatus(state, action.id, action.references);
-  case ACCOUNT_BLOCK_SUCCESS:
-  case ACCOUNT_MUTE_SUCCESS:
-    return filterStatuses(state, action.relationship);
   default:
     return state;
   }