Environment

Environment:
OS: macOS High Sierra 10.13.3
Node: 8.7.0
Yarn: 1.2.1
npm: 5.5.1
Watchman: 4.9.0
Xcode: Xcode 9.3 Build version 9E145
Android Studio: 2.3 AI-162.4069837

Packages: (wanted => installed)
react: 16.0.0 => 16.0.0
react-native: 0.50.1 => 0.50.1

Steps to Reproduce

Using the "saveEvent" method to update a single event in a series.

Expected Behavior

When setting futureEvents: false and exceptionDate: ${EVENT_START_TIME}, should update an individual event in a series of events

Actual Behavior

Every event in that series of events gets updated