Double name 'liststore1' fixed

Change-Id: Idd4ab5d64ab58ddbe13c412f5684ab7db8af8224
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151633
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/cui/uiconfig/ui/widgettestdialog.ui b/cui/uiconfig/ui/widgettestdialog.ui
index 62a35a0..00333de 100644
--- a/cui/uiconfig/ui/widgettestdialog.ui
+++ b/cui/uiconfig/ui/widgettestdialog.ui
@@ -90,7 +90,7 @@
                    <property name="visible">True</property>
                    <property name="sensitive">False</property>
                    <property name="can-focus">False</property>
                    <property name="model">liststore1</property>
                    <property name="model">liststore4</property>
                    <property name="button-sensitivity">off</property>
                    <property name="has-entry">True</property>
                    <property name="entry-text-column">0</property>