**Describe the bug** lorem().characters() method sometimes does not include digit. **To Reproduce** Run "lorem().characters(7,true,true)" this in a loop. Observe that some times, the generated string will miss digit. **Expected behavior** A digit must include every time when includeDigit is used. **Versions:** - OS: Windows - JDK 11 - Faker Version 1.0.2 **Additional context**