OpenShift master-controllers crash with "fatal error: concurrent map writes"

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Issue

After upgrading from OpenShift 3.5 to 3.6, the OpenShift Master Controllers panic and crash repeatedly with the following error during StatefulSets processing:

atomic-openshift-master-controllers[118682]: I1214 01:22:24.340330  118682 stateful_set.go:420] Syncing StatefulSet example/application with 2 pods
atomic-openshift-master-controllers[118682]: fatal error: concurrent map writes

Environment

OpenShift Container Platform 3.6, 3.7

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