Set access masks to the case of the nick they match, if any

modules/commands/cs_access.cpp

@@ -175,6 +175,9 @@ class CommandCSAccess : public Command
 					return;
 				}
 			}
+
+			if (na)
+				mask = na->nick;
 		}
 
 		for (unsigned i = ci->GetAccessCount(); i > 0; --i)

modules/commands/cs_flags.cpp

@@ -130,6 +130,9 @@ class CommandCSFlags : public Command
 					return;
 				}
 			}
+
+			if (na)
+				mask = na->nick;
 		}
 
 		ChanAccess *current = NULL;

modules/commands/cs_xop.cpp

@@ -176,6 +176,9 @@ class CommandCSXOP : public Command
 					return;
 				}
 			}
+
+			if (na)
+				mask = na->nick;
 		}
 
 		for (unsigned i = 0; i < ci->GetAccessCount(); ++i)