Fixes more places where Android's coroutine cancellations might affect a mutex.

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -22,8 +22,10 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import nostr.postr.Contact
 import nostr.postr.Persona
 import nostr.postr.Utils
@@ -424,11 +426,16 @@ class Account(
     handlerWaiting.set(true)
     val scope = CoroutineScope(Job() + Dispatchers.Default)
     scope.launch {
+      try {
         delay(100)
         live.refresh()
+      } finally {
+        withContext(NonCancellable) {
           handlerWaiting.set(false)
         }
       }
+    }
+  }
 
   fun isHidden(user: User) = user in hiddenUsers()
 

app/src/main/java/com/vitorpamplona/amethyst/model/User.kt

@@ -298,11 +298,16 @@ class UserLiveData(val user: User): LiveData<UserState>(UserState(user)) {
         handlerWaiting.set(true)
         val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
+            try {
                 delay(100)
                 refresh()
+            } finally {
+                withContext(NonCancellable) {
                     handlerWaiting.set(false)
                 }
             }
+        }
+    }
 
     private fun refresh() {
         postValue(UserState(user))