Resolves: tdf#131248 a11y crash when closing SQL Edit Query

Change-Id: I39db7b352dd460f46092a054bfa89f5acdda54c1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90273
Tested-by: Jenkins
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>
(cherry picked from commit 156f14c6632df104186feeba250abdf7de4a2e30)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90280
Reviewed-by: Michael Stahl <michael.stahl@cib.de>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Miklos Vajna <vmiklos@collabora.com>
diff --git a/vcl/source/edit/vclmedit.cxx b/vcl/source/edit/vclmedit.cxx
index e21d5c4..49b63e9 100644
--- a/vcl/source/edit/vclmedit.cxx
+++ b/vcl/source/edit/vclmedit.cxx
@@ -1087,6 +1087,9 @@ void VclMultiLineEdit::SetReadOnly( bool bReadOnly )

bool VclMultiLineEdit::IsReadOnly() const
{
    if (!pImpVclMEdit)  // might be called from within the dtor, when pImpVclMEdit == NULL is a valid state
        return true;

    return pImpVclMEdit->IsReadOnly();
}