Fix input issues

Author: Insality

druid/extended/input.lua

@@ -240,7 +240,7 @@ function Input.on_input(self, action_id, action)
 			if self.max_length then
 				self.marked_value = utf8.sub(self.marked_value, 1, self.max_length)
 			end
-			is_marked_text_changed = true
+			is_marked_text_changed = self.marked_value ~= ""
 		end
 
 		if action_id == const.ACTION_BACKSPACE and (action.pressed or action.repeated) then
@@ -280,7 +280,7 @@ function Input.on_input(self, action_id, action)
 		end
 
 		if input_text or is_marked_text_changed then
-			self:set_text(input_text)
+			self:set_text(input_text or self.value)
 
 			if cursor_shift_indexes then
 				self:select_cursor(self.cursor_index + cursor_shift_indexes)
@@ -304,11 +304,6 @@ function Input.on_focus_lost(self)
 end
 
 
-function Input.on_input_interrupt(self)
-	--self:unselect()
-end
-
-
 function Input.get_text_selected(self)
 	if self.start_index == self.end_index then
 		return self.value