too risky to dlclose basctl once opened

e.g. use macro organizer for the first time and launch a macro, user event
with handle to basctl function posted

Change-Id: I2f0f4a7536f071926ea1bd6994f8178fbd4a796f

sfx2/source/appl/app.cxx

@@ -494,6 +494,8 @@ IMPL_LINK( SfxApplication, GlobalBasicErrorHdl_Impl, StarBASIC*, pStarBasic )
     // get symbol
     basicide_handle_basic_error pSymbol = (basicide_handle_basic_error) aMod.getFunctionSymbol("basicide_handle_basic_error");
 
+    aMod.release();
+
     // call basicide_handle_basic_error in basctl
     long nRet = pSymbol ? pSymbol( pStarBasic ) : 0;
 

sfx2/source/appl/appserv.cxx

@@ -855,6 +855,7 @@ OUString ChooseMacro( const Reference< XModel >& rxLimitToDocument, bool bChoose
     SAL_WARN_IF(!pSymbol, "sfx.doc", "SfxApplication::MacroOrganizer, no symbol!");
     if (!pSymbol)
         return OUString();
+    aMod.release();
 #else
 #define pSymbol basicide_choose_macro
 #endif