don't use shared empty string if extra space is to be allocated

fix crash for fdo#58306 when appending to OUStringBuffer initialised with ""

1 files changed, 1 insertions, 1 deletions

diff --git a/sal/rtl/source/strtmpl.cxx b/sal/rtl/source/strtmpl.cxx
index cdb4f11a0254..505d5aba51fa 100644
--- a/sal/rtl/source/strtmpl.cxx
+++ b/sal/rtl/source/strtmpl.cxx
@@ -1225,7 +1225,7 @@ void SAL_CALL IMPL_RTL_STRINGNAME( newFromLiteral )( IMPL_RTL_STRINGDATA** ppThi
                                                      sal_Int32 allocExtra )
     SAL_THROW_EXTERN_C()
 {
-    if ( !nLen )
+    if ( nLen + allocExtra == 0 )
     {
         IMPL_RTL_STRINGNAME( new )( ppThis );
         return;