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Don't try to update empty process history ID #2521

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Feb 20, 2014
Merged

Don't try to update empty process history ID #2521

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3 changes: 2 additions & 1 deletion FWCore/Sources/src/DaqProvenanceHelper.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,7 @@ namespace edm {

void
DaqProvenanceHelper::fixMetaData(std::vector<ProcessConfiguration>& pcv, std::vector<ProcessHistory>& phv) {
phv.push_back(ProcessHistory()); // For new processHistory, containing only processConfiguration_
std::vector<ProcessConfiguration> newPCs;
for(auto const& pc : pcv) {
if(pc.processName() == oldProcessName_) {
Expand All @@ -118,7 +119,7 @@ namespace edm {
// update existing process histories
for(auto& ph : phv) {
for(auto const& newPC : newPCs) {
if(matchProcesses(newPC, ph)) {
if(ph.empty() || matchProcesses(newPC, ph)) {
ProcessHistoryID oldPHID = ph.id();
ph.push_front(newPC);
ProcessHistoryID newPHID = ph.id();
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