Index: generic/nsf.c
===================================================================
diff -u -r6a3890ea40bf82f2ffea1481aeb80d1e2a4eec47 -rae5048628e2e4709a63515b2e4a892af9f065466
--- generic/nsf.c	(.../nsf.c)	(revision 6a3890ea40bf82f2ffea1481aeb80d1e2a4eec47)
+++ generic/nsf.c	(.../nsf.c)	(revision ae5048628e2e4709a63515b2e4a892af9f065466)
@@ -25181,6 +25181,7 @@
   if (likely(result == TCL_OK)) {
     ParseContext  pc;
     NsfParamDefs *paramDefs = parsedParam.paramDefs;
+    ParamDefsRefCountIncr(paramDefs);
     unsigned int  processFlags = 0u;
 
     result = ArgumentParse(interp, objc, objv, NULL, NsfGlobalObjs[NSF_PARSE_ARGS],
@@ -25205,10 +25206,9 @@
           }
         }
       }
-
-      ParseContextRelease(&pc);
     }
-
+    ParamDefsRefCountDecr(paramDefs);
+    ParseContextRelease(&pc);
   }
   return result;
 }