tdf#156978 SwNavigator: fix gtk3 crash on treeview get_sensitive

Change-Id: Ife866103b61940138cd044c666e0556760dcefa8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/156272
Tested-by: Jenkins
Reviewed-by: Jim Raykowski <raykowj@gmail.com>
diff --git a/sw/source/uibase/utlui/content.cxx b/sw/source/uibase/utlui/content.cxx
index e836bbe..d2c6979 100644
--- a/sw/source/uibase/utlui/content.cxx
+++ b/sw/source/uibase/utlui/content.cxx
@@ -2976,7 +2976,7 @@ bool SwContentTree::HasContentChanged()
            // treeview from the content type member arrays if content change is detected.
            const SwContent* pCnt = pArrType->GetMember(j);

            if (pCnt->IsInvisible() != m_xTreeView->get_sensitive(*xEntry, -1))
            if (pCnt->IsInvisible() != m_xTreeView->get_sensitive(*xEntry, 0))
                return true;

            OUString sEntryText = m_xTreeView->get_text(*xEntry);
@@ -3060,7 +3060,7 @@ bool SwContentTree::HasContentChanged()

                    const SwContent* pCnt = pArrType->GetMember(j);

                    if (pCnt->IsInvisible() != m_xTreeView->get_sensitive(*xEntry, -1))
                    if (pCnt->IsInvisible() != m_xTreeView->get_sensitive(*xEntry, 0))
                    {
                        bContentChanged = true;
                        break;