Invalidate string rep. Before make expandable buffer.

[chiark-tcl.git] / base / parse.c

diff --git a/base/parse.c b/base/parse.c
index a7ac819c637813e78caef4991c3c46f32e2ebdf0..1e1e5bb2ba616b13d3a27e08e8a9c74d1458c8c6 100644 (file)
--- a/base/parse.c
+++ b/base/parse.c
@@ -49,6 +49,7 @@ int pat_hbv(Tcl_Interp *ip, Tcl_Obj *var, HBytes_Var *agg) {
 void fini_hbv(Tcl_Interp *ip, int rc, HBytes_Var *agg) {
   Tcl_Obj *ro;
   
+  Tcl_InvalidateStringRep(agg->obj);
   if (!rc) {
     assert(agg->obj);
     ro= Tcl_ObjSetVar2(ip,agg->var,0,agg->obj,TCL_LEAVE_ERR_MSG);