send_message to a component from the create method does not work

[aidanhs]

Problem

Doing link.send_message(Msg::Foo); in the create method of the component silently drops the message

Steps To Reproduce
Apply the following patch (paste it into git apply and hit ctrl+d), then run the todomvc example. I'd expect it to log two things on page load after creating model, but it doesn't.

--- a/examples/todomvc/src/lib.rs
+++ b/examples/todomvc/src/lib.rs
@@ -31,6 +31,7 @@ struct Entry {
     editing: bool,
 }
 
+#[derive(Debug)]
 pub enum Msg {
     Add,
     Edit(usize),
@@ -64,6 +65,9 @@ impl Component for Model {
             value: "".into(),
             edit_value: "".into(),
         };
+        yew::web_sys::console::log_1(&"creating model".into());
+        link.send_message(Msg::Add);
+        link.send_message(Msg::Update("xyz".to_owned()));
         Model {
             link,
             storage,
@@ -72,6 +76,7 @@ impl Component for Model {
     }
 
     fn update(&mut self, msg: Self::Message) -> ShouldRender {
+        yew::web_sys::console::log_1(&format!("got msg: {:?}", msg).into());
         match msg {
             Msg::Add => {
                 let entry = Entry {
@@ -242,6 +247,7 @@ impl Model {
 }
 
 #[derive(EnumIter, ToString, Clone, PartialEq, Serialize, Deserialize)]
+#[derive(Debug)]
 pub enum Filter {
     All,
     Active,

Expected behavior
The message should be scheduled for after the component is mounted. This has changed between 0.12 and 0.16.

Environment:

• Yew version master
• Rust version 1.43.0
• Browser: chromium, firefox

Questionnaire

• I'm interested in fixing this myself but don't know where to start
• I would like to fix and I have a solution
• I don't have time to fix this right now, but maybe later

[jstarry]

Dang, looks like I just introduced this bug on master with #1186

Thanks for the heads up!