Set counter-fetching mode around IHV counters on OpenGL

* This mode suppresses the default behaviour to end unbalanced things like
  transform feedback and queries, and also stops the capture from using queries
  that might be in use outside.

renderdoc/driver/gl/gl_counters.cpp

@@ -566,6 +566,8 @@ rdcarray<CounterResult> GLReplay::FetchCounters(const rdcarray<GPUCounter> &allC
   std::copy_if(allCounters.begin(), allCounters.end(), std::back_inserter(counters),
                [](const GPUCounter &c) { return IsGenericCounter(c); });
 
+  m_pDriver->SetFetchCounters(true);
+
   if(m_pAMDCounters)
   {
     // Filter out the AMD counters
@@ -602,6 +604,8 @@ rdcarray<CounterResult> GLReplay::FetchCounters(const rdcarray<GPUCounter> &allC
       ret = FetchCountersARM(armCounters);
   }
 
+  m_pDriver->SetFetchCounters(false);
+
   if(counters.empty())
   {
     return ret;