@@ -42,2 +44,4 @@
   const back = () => history.back()
 
+  const normalizeTopics = (value: string) =>
+    Array.from(new Set(value.split(",").map(normalizeTopic).filter(identity)))

@@ -42,2 +52,4 @@
   const back = () => history.back()
 
+  const normalizeTopics = (value: string) =>
+    uniq(removeUndefined(value.split(",").map(normalizeTopic)).filter(identity))

@@ -44,0 +57,4 @@
+  const getTopicSearch = () =>
+    createSearch(
+      uniq(
+        removeUndefined($allTopics.map(topic => normalizeTopic(topic.name))).filter(identity),

@@ -44,0 +71,4 @@
+    )
+
+  const searchTopics = (value: string) => {
+    const topicSearch = getTopicSearch()

@@ -44,0 +76,4 @@
+
+    const found = normalized
+      ? topicSearch.searchValues(normalized)
+      : topicSearch.options.map(topic => topic.name)

@@ -44,0 +105,4 @@
+  const onTopicInput = (e: Event) => {
+    const {value} = e.target as HTMLInputElement
+
+    if (value.includes(",")) {

@@ -74,0 +141,4 @@
+      const topics =
+        pendingTopic && !selectedTopics.includes(pendingTopic)
+          ? [...selectedTopics, pendingTopic]
+          : selectedTopics

@@ -153,0 +275,4 @@
+                maxWidth: "none",
+                getReferenceClientRect: () => topicWrapper!.getBoundingClientRect(),
+              }} />
+          </div>