multi_select validation for "min" option ignored if "max" validation passes

[sveinn]

Describe the problem

When both :min and :max options are passed to multi_select, the min option is ignored if number of selections is less than or equal to the max option value. Expected behavior to ensure number of selected items is between min and max values.

Steps to reproduce the problem

1. run `TTY::Prompt.new.multi_select("Select:", %w(one two), min: 1, max: 1)`
2. don't make a selection and hit enter
3. observed: prompt returns 
4. desired: prompt validates the min requirement

Actual behaviour

Expected behaviour

When enter is hit and the number of selections is less than :min, I expect the prompt to not return.

Cause

^ as long as max is valid min is ignored

Describe your environment

• OS version: MacOS 10.15.7
• Ruby version: 2.7.1
• TTY::Prompt version: 0.23.1

[piotrmurach]

Hi Sveinn 👋

Thanks for using tty-prompt and submitting this issue report. Good spot! I left some comments on your PR.