Automatic flowbit resolution setting does not match description
On 2.4.4.a.20180817.2020, install suricata (version 4.0.13_3), add an interface, visit the Categories tab and see that the Automatic flowbit resolution setting is unchecked. Below that, notice the message that reads:
Default is Checked. Suricata will examine the enabled rules in your chosen rule categories for checked flowbits. Any rules that set these dependent flowbits will be automatically enabled and added to the list of files in the interface rules directory.