diff --git a/.gitattributes b/.gitattributes
index 6eec0b2c23..57c37e61ad 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -7915,6 +7915,7 @@ tests/webtbs/tw1068.pp svneol=native#text/plain
 tests/webtbs/tw10681.pp svneol=native#text/plain
 tests/webtbs/tw1071.pp svneol=native#text/plain
 tests/webtbs/tw1073.pp svneol=native#text/plain
+tests/webtbs/tw10736.pp svneol=native#text/plain
 tests/webtbs/tw1081.pp svneol=native#text/plain
 tests/webtbs/tw1090.pp svneol=native#text/plain
 tests/webtbs/tw1092.pp svneol=native#text/plain
diff --git a/compiler/ncal.pas b/compiler/ncal.pas
index 9ba8a444aa..6cb74a46ac 100644
--- a/compiler/ncal.pas
+++ b/compiler/ncal.pas
@@ -172,7 +172,7 @@ interface
           function pass_1 : tnode;override;
           procedure get_paratype;
           procedure firstcallparan;
-          procedure insert_typeconv(do_count : boolean);
+          procedure insert_typeconv;
           procedure secondcallparan;virtual;abstract;
           function docompare(p: tnode): boolean; override;
           procedure printnodetree(var t:text);override;
@@ -584,7 +584,7 @@ implementation
       end;
 
 
-    procedure tcallparanode.insert_typeconv(do_count : boolean);
+    procedure tcallparanode.insert_typeconv;
       var
         olddef  : tdef;
         hp      : tnode;
@@ -807,21 +807,18 @@ implementation
                    else
                      make_not_regable(left,[ra_addr_regable]);
 
-                 if do_count then
-                  begin
-                    case parasym.varspez of
-                      vs_out :
-                        begin
-                          { first set written separately to avoid false }
-                          { uninitialized warnings (tbs/tb0542)         }
-                          set_varstate(left,vs_written,[]);
-                          set_varstate(left,vs_readwritten,[]);
-                        end;
-                      vs_var :
-                        set_varstate(left,vs_readwritten,[vsf_must_be_valid,vsf_use_hints]);
-                      else
-                        set_varstate(left,vs_read,[vsf_must_be_valid]);
-                    end;
+                  case parasym.varspez of
+                    vs_out :
+                      begin
+                        { first set written separately to avoid false }
+                        { uninitialized warnings (tbs/tb0542)         }
+                        set_varstate(left,vs_written,[]);
+                        set_varstate(left,vs_readwritten,[]);
+                      end;
+                    vs_var :
+                      set_varstate(left,vs_readwritten,[vsf_must_be_valid,vsf_use_hints]);
+                    else
+                      set_varstate(left,vs_read,[vsf_must_be_valid]);
                   end;
                  { must only be done after typeconv PM }
                  resultdef:=parasym.vardef;
@@ -830,7 +827,7 @@ implementation
 
          { process next node }
          if assigned(right) then
-           tcallparanode(right).insert_typeconv(do_count);
+           tcallparanode(right).insert_typeconv;
       end;
 
 
@@ -2418,16 +2415,8 @@ implementation
                  { a constructor will and a method may write something to }
                  { the fields                                             }
                  set_varstate(methodpointer,vs_readwritten,[])
-               else if ((hpt.nodetype=loadn) and
-                     (methodpointer.resultdef.typ=classrefdef)) then
-                   set_varstate(methodpointer,vs_read,[])
                else
                  set_varstate(methodpointer,vs_read,[vsf_must_be_valid]);
-
-               { The object is already used if it is called once }
-               if (hpt.nodetype=loadn) and
-                  (tloadnode(hpt).symtableentry.typ in [localvarsym,paravarsym,staticvarsym]) then
-               set_varstate(hpt,vs_read,[]);
              end;
 
             { if we are calling the constructor check for abstract
@@ -2462,7 +2451,7 @@ implementation
 
          { insert type conversions for parameters }
          if assigned(left) then
-           tcallparanode(left).insert_typeconv(true);
+           tcallparanode(left).insert_typeconv;
 
          { dispinterface methode invoke? }
          if assigned(methodpointer) and is_dispinterface(methodpointer.resultdef) then
diff --git a/tests/webtbs/tw10736.pp b/tests/webtbs/tw10736.pp
new file mode 100644
index 0000000000..c59b8b8728
--- /dev/null
+++ b/tests/webtbs/tw10736.pp
@@ -0,0 +1,66 @@
+{ %OPT=-Sew }
+
+unit tw10736;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils; 
+  
+type
+
+  { TAbstractPage }
+
+  TAbstractPage = class
+  protected
+    procedure Execute virtual; abstract;
+  public
+    class procedure PageExecute;
+  end;
+
+  TPageClass = class of TAbstractPage;
+
+  { TPageUnknown }
+
+  TPageUnknown = class(TAbstractPage)
+  protected
+    procedure Execute override;
+  end;
+
+procedure HandleRequest;
+
+implementation
+
+{ TAbstractPage }
+
+class procedure TAbstractPage.PageExecute;
+begin
+(*
+  with Self.Create do try
+    Execute;
+  finally
+    Free;
+  end;
+*)
+end;
+
+{ TPageUnknown }
+
+procedure TPageUnknown.Execute;
+begin
+  //Whatever...
+end;
+
+procedure HandleRequest;
+//Zomaar een kleine besturing, iemand andere ideen?
+var Page: TPageClass;
+begin
+  Page := TPageUnknown;
+  Page.PageExecute;
+end;
+
+
+end.
+