Fixes bug with rendering of markdown with user citations.

app/src/main/java/com/vitorpamplona/amethyst/service/nip19/Nip19.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.service.nip19
 
 import android.util.Log
+import androidx.compose.runtime.Immutable
 import com.vitorpamplona.amethyst.model.hexToByteArray
 import com.vitorpamplona.amethyst.model.toHexKey
 import nostr.postr.Bech32
@@ -15,6 +16,7 @@ object Nip19 {
 
     val nip19regex = Pattern.compile("(nostr:)?@?(nsec1|npub1|nevent1|naddr1|note1|nprofile1|nrelay1)([qpzry9x8gf2tvdw0s3jn54khce6mua7l]+)([\\S]*)", Pattern.CASE_INSENSITIVE)
 
+    @Immutable
     data class Return(
         val type: Type,
         val hex: String,

app/src/main/java/com/vitorpamplona/amethyst/ui/components/RichTextViewer.kt

@@ -365,40 +365,8 @@ private fun RenderContentAsMarkdown(content: String, backgroundColor: Color, tag
     }
 
     nip19References.forEach {
-        var baseUser by remember(it) { mutableStateOf<User?>(null) }
+        ObserveNIP19(it) {
-        var baseNote by remember(it) { mutableStateOf<Note?>(null) }
+            refresh++
-
-        LaunchedEffect(key1 = it.hex) {
-            withContext(Dispatchers.IO) {
-                if (it.type == Nip19.Type.NOTE || it.type == Nip19.Type.EVENT || it.type == Nip19.Type.ADDRESS) {
-                    LocalCache.checkGetOrCreateNote(it.hex)?.let { note ->
-                        baseNote = note
-                    }
-                }
-
-                if (it.type == Nip19.Type.USER) {
-                    LocalCache.checkGetOrCreateUser(it.hex)?.let { user ->
-                        baseUser = user
-                    }
-                }
-            }
-        }
-
-        baseNote?.let {
-            val noteState by it.live().metadata.observeAsState()
-            if (noteState?.note?.event != null) {
-                LaunchedEffect(key1 = noteState) {
-                    refresh++
-                }
-            }
-        }
-        baseUser?.let {
-            val userState by it.live().metadata.observeAsState()
-            if (userState?.user?.info != null) {
-                LaunchedEffect(key1 = userState) {
-                    refresh++
-                }
-            }
         }
     }
 
@@ -423,6 +391,49 @@ private fun RenderContentAsMarkdown(content: String, backgroundColor: Color, tag
     }
 }
 
+@Composable
+private fun ObserveNIP19(
+    it: Nip19.Return,
+    onRefresh: () -> Unit
+) {
+    var baseUser by remember(it) { mutableStateOf<User?>(null) }
+    var baseNote by remember(it) { mutableStateOf<Note?>(null) }
+
+    LaunchedEffect(key1 = it.hex) {
+        withContext(Dispatchers.IO) {
+            if (it.type == Nip19.Type.NOTE || it.type == Nip19.Type.EVENT || it.type == Nip19.Type.ADDRESS) {
+                LocalCache.checkGetOrCreateNote(it.hex)?.let { note ->
+                    baseNote = note
+                }
+            }
+
+            if (it.type == Nip19.Type.USER) {
+                LocalCache.checkGetOrCreateUser(it.hex)?.let { user ->
+                    baseUser = user
+                }
+            }
+        }
+    }
+
+    baseNote?.let { note ->
+        val noteState by note.live().metadata.observeAsState()
+        if (noteState?.note?.event != null) {
+            LaunchedEffect(key1 = noteState) {
+                onRefresh()
+            }
+        }
+    }
+
+    baseUser?.let { user ->
+        val userState by user.live().metadata.observeAsState()
+        if (userState?.user?.info != null) {
+            LaunchedEffect(key1 = userState) {
+                onRefresh()
+            }
+        }
+    }
+}
+
 private fun getDisplayNameAndNIP19FromTag(tag: String, tags: List<List<String>>): Pair<String, String>? {
     val matcher = tagIndex.matcher(tag)
     val (index, suffix) = try {