minor bugfixes in SchemeBoard subscriber and tests (#20262)

Author: jepett0

ydb/core/tx/scheme_board/populator.cpp

@@ -706,7 +706,7 @@ class TPopulator: public TMonitorableActor<TPopulator> {
         }
 
         it->second.AckTo = ev->Sender;
-        it->second.PathAcks.emplace(std::make_pair(pathId, version), TVector<ui32>(GroupInfo->RingGroups.size()));
+        it->second.PathAcks.emplace(std::make_pair(pathId, version), TVector<ui32>(GroupInfo->RingGroups.size(), 0));
 
         Update(pathId, isDeletion, ev->Cookie);
 

ydb/core/tx/scheme_board/subscriber.cpp

@@ -769,7 +769,7 @@ class TSubscriber: public TMonitorableActor<TDerived> {
     }
 
     bool IsMajorityReached() const {
-        TVector<ui32> responsesByGroup(ProxyGroups.size());
+        TVector<ui32> responsesByGroup(ProxyGroups.size(), 0);
         for (const auto& [proxy, _] : InitialResponses) {
             if (const auto* groupIdx = ProxyToGroupMap.FindPtr(proxy)) {
                 responsesByGroup[*groupIdx]++;
@@ -939,8 +939,8 @@ class TSubscriber: public TMonitorableActor<TDerived> {
         Y_ABORT_UNLESS(!ReceivedSync.contains(ev->Sender));
         ReceivedSync[ev->Sender] = ev->Get()->Record.GetPartial();
 
-        TVector<ui32> successesByGroup(ProxyGroups.size());
-        TVector<ui32> failuresByGroup(ProxyGroups.size());
+        TVector<ui32> successesByGroup(ProxyGroups.size(), 0);
+        TVector<ui32> failuresByGroup(ProxyGroups.size(), 0);
         for (const auto& [proxy, partial] : ReceivedSync) {
             const auto* groupIdx = ProxyToGroupMap.FindPtr(proxy);
             if (!groupIdx) {

ydb/core/tx/scheme_board/subscriber_ut.cpp

@@ -105,7 +105,7 @@ void TSubscriberTest::NotifyDelete() {
 
     Context->CreateSubscriber<TSchemeBoardEvents::TEvNotifyUpdate>(edge, "path");
 
-    for (size_t i = 0; i <= replicas.size() / 2 + 1; ++i) {
+    for (size_t i = 0; i < replicas.size() / 2 + 1; ++i) {
         Context->Send(replicas[i], edge, GenerateUpdate(GenerateDescribe("path", TPathId(1, 1)), 1, 1, true));
     }