Resolves: tdf#160671 History is not shown after second opening of dropdown

of the internal file dialogs. Restore the picklist instead of blanking it.

Change-Id: I2fdb45532bae59dbfa7ccc8754af9104a0d0c6e7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/199452
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>

svtools/source/control/inettbc.cxx

@@ -838,7 +838,7 @@ IMPL_LINK_NOARG(SvtURLBox, TryAutoComplete, Timer *, void)
         pCtx->launch();
     }
     else
-        m_xWidget->clear();
+        UpdatePicklistForSmartProtocol_Impl();
 }
 
 SvtURLBox::SvtURLBox(std::unique_ptr<weld::ComboBox> pWidget)