Fixed revisions race condition

app/src/main/java/eu/faircode/email/Core.java

@@ -4409,6 +4409,12 @@ class Core {
                 try {
                     db.beginTransaction();
 
+                    EntityMessage existing = db.message().getMessage(message.id);
+                    if (existing != null) {
+                        message.revision = existing.revision;
+                        message.revisions = existing.revisions;
+                    }
+
                     db.message().updateMessage(message);
 
                     if (process)

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -6298,7 +6298,7 @@ public class FragmentCompose extends FragmentBase {
             bottom_navigation.getMenu().findItem(R.id.action_redo).setVisible(draft.revision < draft.revisions);
 
             if (args.getBundle("extras").getBoolean("silent")) {
-                etBody.setTag(etBody.getText());
+                etBody.setTag(null);
                 return;
             }