Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `app/views/admin/pending_accounts/index.html.haml`:
  Removed upstream, while it had glitch-soc-specific changes to accomodate
  for glitch-soc's theming system.
  Removed the file.

Additional changes:
- `app/views/admin/accounts/index.html.haml':
  Accomodate for glitch-soc's theming system.

app/javascript/mastodon/actions/compose.js

@@ -37,6 +37,7 @@ export const THUMBNAIL_UPLOAD_PROGRESS = 'THUMBNAIL_UPLOAD_PROGRESS';
 export const COMPOSE_SUGGESTIONS_CLEAR = 'COMPOSE_SUGGESTIONS_CLEAR';
 export const COMPOSE_SUGGESTIONS_READY = 'COMPOSE_SUGGESTIONS_READY';
 export const COMPOSE_SUGGESTION_SELECT = 'COMPOSE_SUGGESTION_SELECT';
+export const COMPOSE_SUGGESTION_IGNORE = 'COMPOSE_SUGGESTION_IGNORE';
 export const COMPOSE_SUGGESTION_TAGS_UPDATE = 'COMPOSE_SUGGESTION_TAGS_UPDATE';
 
 export const COMPOSE_TAG_HISTORY_UPDATE = 'COMPOSE_TAG_HISTORY_UPDATE';
@@ -536,13 +537,25 @@ export function selectComposeSuggestion(position, token, suggestion, path) {
       startPosition = position;
     }
 
-    dispatch({
-      type: COMPOSE_SUGGESTION_SELECT,
-      position: startPosition,
-      token,
-      completion,
-      path,
-    });
+    // We don't want to replace hashtags that vary only in case due to accessibility, but we need to fire off an event so that
+    // the suggestions are dismissed and the cursor moves forward.
+    if (suggestion.type !== 'hashtag' || token.slice(1).localeCompare(suggestion.name, undefined, { sensitivity: 'accent' }) !== 0) {
+      dispatch({
+        type: COMPOSE_SUGGESTION_SELECT,
+        position: startPosition,
+        token,
+        completion,
+        path,
+      });
+    } else {
+      dispatch({
+        type: COMPOSE_SUGGESTION_IGNORE,
+        position: startPosition,
+        token,
+        completion,
+        path,
+      });
+    }
   };
 };