Ensure draft is saved with NonCancellable

Signed-off-by: Dominic Fischer <[email protected]>

vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailViewModel.kt

@@ -50,6 +50,7 @@ import io.reactivex.functions.BiFunction
 import io.reactivex.rxkotlin.subscribeBy
 import io.reactivex.schedulers.Schedulers
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.commonmark.parser.Parser
@@ -476,7 +477,7 @@ class RoomDetailViewModel @AssistedInject constructor(
      * Convert a send mode to a draft and save the draft
      */
     private fun handleSaveDraft(action: RoomDetailAction.SaveDraft) = withState {
-        viewModelScope.launch {
+        viewModelScope.launch(NonCancellable) {
             when {
                 it.sendMode is SendMode.REGULAR && !it.sendMode.fromSharing -> {
                     setState { copy(sendMode = it.sendMode.copy(action.draft)) }