(svn r22472) -Fix: When a NewGRF assigned station properties 09 and/or 0A multiple times, the previously allocated sprite layouts were not freed.

src/newgrf.cpp

@@ -1221,6 +1221,8 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, Byte
 			}
 
 			case 0x09: // Define sprite layout
+				delete[] statspec->renderdata; // delete earlier loaded stuff
+
 				statspec->tiles = buf->ReadExtendedByte();
 				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
 
@@ -1281,6 +1283,8 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, Byte
 					continue;
 				}
 
+				delete[] statspec->renderdata; // delete earlier loaded stuff
+
 				statspec->tiles = srcstatspec->tiles;
 				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
 				for (uint t = 0; t < statspec->tiles; t++) {