Remove inner couple {...} from {{...}} only when instance is not

a behavioral source which will be translated to a B source.

src/frontend/inpcom.c

@@ -7623,24 +7623,27 @@ static void inp_quote_params(struct card *c, struct card *end_c,
             }
         }
         /* Now check if we have nested {..{  }...}, which is not accepted by numparam code.
-           Replace the inner { } by ( ) */
+           Replace the inner { } by ( ). Do this only when this is not a behavioral device
+           which will become a B source. B source handling is special in inp.c. */
         char* cut_line = c->line;
-        cut_line = strchr(cut_line, '{');
-        if (cut_line) {
-            int level = 1;
-            cut_line++;
-            while (*cut_line != '\0') {
-                if (*cut_line == '{') {
-                    level++;
-                    if (level > 1)
-                        *cut_line = '(';
-                }
-                else if (*cut_line == '}') {
-                    if (level > 1)
-                        *cut_line = ')';
-                    level--;
-                }
+        if (!b_transformation_wanted(cut_line)) {
+            cut_line = strchr(cut_line, '{');
+            if (cut_line) {
+                int level = 1;
                 cut_line++;
+                while (*cut_line != '\0') {
+                    if (*cut_line == '{') {
+                        level++;
+                        if (level > 1)
+                            *cut_line = '(';
+                    }
+                    else if (*cut_line == '}') {
+                        if (level > 1)
+                            *cut_line = ')';
+                        level--;
+                    }
+                    cut_line++;
+                }
             }
         }
     }