From fb722c79bea6f8882e94323a7dd182a0b0d13a05 Mon Sep 17 00:00:00 2001
From: Will <tekulvw@users.noreply.github.com>
Date: Thu, 4 Apr 2019 18:59:14 -0400
Subject: [PATCH] [V3 ModLog] Change register_casetypes behavior (#2551)

* Ignore runtime error in register_casetypes

* Fix documentation
---
 redbot/core/modlog.py | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/redbot/core/modlog.py b/redbot/core/modlog.py
index 6824b2c27..e096e08f4 100644
--- a/redbot/core/modlog.py
+++ b/redbot/core/modlog.py
@@ -746,7 +746,6 @@ async def register_casetypes(new_types: List[dict]) -> List[CaseType]:
 
     Raises
     ------
-    RuntimeError
     KeyError
     ValueError
     AttributeError
@@ -761,13 +760,9 @@ async def register_casetypes(new_types: List[dict]) -> List[CaseType]:
         try:
             ct = await register_casetype(**new_type)
         except RuntimeError:
-            raise
-        except ValueError:
-            raise
-        except AttributeError:
-            raise
-        except TypeError:
-            raise
+            # We pass here because RuntimeError signifies the case was
+            # already registered.
+            pass
         else:
             type_list.append(ct)
     else: