Avoid heap buffer overflow

changelog

+Version 4.0.6
+- Prevent heap buffer overflow writing annotated mmCIF file.
+
 Version 4.0.5
 Version 4.0.5
 - The options for loading custom dictionary files and the like are now
 - The options for loading custom dictionary files and the like are now
   visible in the help again.
   visible in the help again.

src/dssp.cpp

@@ -343,14 +343,14 @@ void annotateDSSP(mmcif::Structure& structure, const mmcif::DSSP& dssp, bool wri
 				st = t;
 				st = t;
 			}
 			}
 
 
+			if (stop)
+				break;
+
 			if (lastSS != t->ss())
 			if (lastSS != t->ss())
 			{
 			{
 				st = t;
 				st = t;
 				lastSS = t->ss();
 				lastSS = t->ss();
 			}
 			}
-
-			if (stop)
-				break;
 		}
 		}
 	}
 	}