test(ui): wait for another success with failure after success

Problem:
In a success-failure-success situation, if minimal timeout is reached
between the failure and the second success, the session is stopped
without waiting for the second success, causing the test to fail.

Solution:
Wait for another success if a failure is seen after a success.

Ref #22155 #22464

test/functional/ui/screen.lua

@@ -557,6 +557,7 @@ function Screen:_wait(check, flags)
         self._session:stop()
       end
     elseif success_seen and #args > 0 then
+      success_seen = false
       failure_after_success = true
       -- print(inspect(args))
     end