File v2-0002-LockName-default.patch of Package dymo-cups-drivers

diff --git a/src/common/CupsFilter.h b/src/common/CupsFilter.h
index 6b2dffc13a62..166423dd89e8 100644
--- a/src/common/CupsFilter.h
+++ b/src/common/CupsFilter.h
@@ -305,6 +305,10 @@ template<class D, class DI, class LM> void CCupsFilter<D, DI, LM>::InitDocument(
     int num_dests = cupsGetDests(&dests);
     cups_dest_t* dest = cupsGetDest(name, NULL, num_dests, dests);
 
+    // When running under cupsfilter, there is no destination but LockName_
+    // must be set to a non-empty value.
+    LockName_ = name;
+
     if(dest)
     {
         cups_option_t* options = NULL;