@@ -, +, @@ 
 clipit installed
---
 vcl/unx/gtk3/gtk3gtkinst.cxx | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
--- a/vcl/unx/gtk3/gtk3gtkinst.cxx	
+++ a/vcl/unx/gtk3/gtk3gtkinst.cxx	
@@ -585,6 +585,7 @@ void VclGtkClipboard::setContents(
 {
     osl::ClearableMutexGuard aGuard( m_aMutex );
     Reference< datatransfer::clipboard::XClipboardOwner > xOldOwner( m_aOwner );
+    bool bOwnerChange = (xOldOwner.is() && xOldOwner != xClipboardOwner);
     Reference< datatransfer::XTransferable > xOldContents( m_aContents );
     m_aContents = xTrans;
     m_aOwner = xClipboardOwner;
@@ -592,6 +593,10 @@ void VclGtkClipboard::setContents(
     std::list< Reference< datatransfer::clipboard::XClipboardListener > > xListeners( m_aListeners );
     datatransfer::clipboard::ClipboardEvent aEv;
 
+    GtkClipboard* clipboard = gtk_clipboard_get(m_nSelection);
+    if (bOwnerChange)
+        gtk_clipboard_clear(clipboard);
+    assert(m_aGtkTargets.empty());
     if (m_aContents.is())
     {
         css::uno::Sequence<css::datatransfer::DataFlavor> aFormats = xTrans->getTransferDataFlavors();
@@ -605,15 +610,11 @@ void VclGtkClipboard::setContents(
             aEntry.info = 0;
             aGtkTargets.push_back(aEntry);
 
-            GtkClipboard* clipboard = gtk_clipboard_get(m_nSelection);
             gtk_clipboard_set_with_data(clipboard, aGtkTargets.data(), aGtkTargets.size(),
                                         ClipboardGetFunc, ClipboardClearFunc, this);
             gtk_clipboard_set_can_store(clipboard, aGtkTargets.data(), aGtkTargets.size());
         }
 
-        for (auto &a : m_aGtkTargets)
-            g_free(a.target);
-
         m_aGtkTargets = aGtkTargets;
     }
 
@@ -621,7 +622,7 @@ void VclGtkClipboard::setContents(
 
     aGuard.clear();
 
-    if( xOldOwner.is() && xOldOwner != xClipboardOwner )
+    if (bOwnerChange)
         xOldOwner->lostOwnership( this, xOldContents );
     for( std::list< Reference< datatransfer::clipboard::XClipboardListener > >::iterator it =
          xListeners.begin(); it != xListeners.end() ; ++it )
--