Fix unhandled rejection warning with await

Closes #80

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+### Fixed
+- Fix unhandled rejection warning appearing when using :awaitStatus
+
 ## [4.0.0-rc.2] - 2022-01-02
 ### Fixed
 - Fix bug where Promise.fold does not return correct value if there is an unresolved Promise in the passed list (#77)

lib/init.lua

@@ -1616,9 +1616,15 @@ function Promise.prototype:awaitStatus()
 	if self._status == Promise.Status.Started then
 		local thread = coroutine.running()
 
-		self:finally(function()
+		self
+			:finally(function()
 				task.spawn(thread)
 			end)
+			-- The finally promise can propagate rejections, so we attach a catch handler to prevent the unhandled
+			-- rejection warning from appearing
+			:catch(
+				function() end
+			)
 
 		coroutine.yield()
 	end