Fix segmentatin fault when list repacks with a tape that has been deleted (#1029)

ReleaseNotes.md

@@ -4,6 +4,9 @@
 
 ### Features
 
+### Bug fixes
+- cta/CTA#1029 Fix segmentatin fault in frontend when list repacks of a tape that has been deleted in the catalogue
+
 # v4.2-1
 
 ## Summary

xroot_plugins/XrdCtaRepackLs.hpp

@@ -65,10 +65,10 @@ namespace cta { namespace xrd {
                  std::inserter(tapeVids, tapeVids.begin()),
                  [](cta::common::dataStructures::RepackInfo &ri) {return ri.vid;});
 
-	cta::common::dataStructures::VidToTapeMap tapeVidMap = m_catalogue.getTapesByVid(tapeVids); // throws an exception if a vid does not exist
-
 	streambuf = new XrdSsiPb::OStreamBuffer<Data>(dlen);
-	
+
+  cta::common::dataStructures::VidToTapeMap tapeVidMap = m_catalogue.getTapesByVid(tapeVids); // throws an exception if a vid does not exist
+
 	for(bool is_buffer_full = false; !m_repackList.empty() && !is_buffer_full; m_repackList.pop_front()){
 	  Data record;
 	  auto &repackRequest = m_repackList.front();