[commands] Make Greedy ignore parsing errors.

discord/ext/commands/core.py

@@ -500,10 +500,10 @@ class Command(_BaseCommand):
             previous = view.index
 
             view.skip_ws()
-            argument = view.get_quoted_word()
             try:
+                argument = view.get_quoted_word()
                 value = await self.do_conversion(ctx, converter, argument, param)
-            except CommandError:
+            except (CommandError, ArgumentParsingError):
                 view.index = previous
                 break
             else:
@@ -516,10 +516,10 @@ class Command(_BaseCommand):
     async def _transform_greedy_var_pos(self, ctx, param, converter):
         view = ctx.view
         previous = view.index
-        argument = view.get_quoted_word()
         try:
+            argument = view.get_quoted_word()
             value = await self.do_conversion(ctx, converter, argument, param)
-        except CommandError:
+        except (CommandError, ArgumentParsingError):
             view.index = previous
             raise RuntimeError() from None # break loop
         else: