Describe the bug
An issue with running cucumber tests on multiple shards. When initiating the test, max-test-shards running a false number of shards and none of them initiating the test.

Gradle build command:
:app:assembleAppDebugAndroidTest :app:assembleAppDebug -PrunCucumber

Running test:
adb shell am instrument -w -r -e debug false com.app.test/com.app.test.CucumberRunner

To Reproduce
Create a couple of cucumber tests and try to run it with flank enabling shards and using max-test-shards set to -1
Specified 4 tests but 100+ shards getting created.

Expected behavior
4 shards need to be created and tests need to run in parallel

Details (please complete the following information):

Have you tested on the latest Flank snapshot?

Yes

Post the output of flank --version.

20.09.1

Additional context

Add any other context about the problem here.