Does Microsoft SwiftKey replace double spaces with a period/full-stop?

In Microsoft SwiftKey you have the option to enable 'Quick period', which means that double-tapping the spacebar will insert a period followed by a space.

If you have selected the 'Auto insert prediction' setting, then repeatedly hitting the spacebar will continue to insert the middle prediction.

You can edit these settings in the following way:

1. Open Microsoft SwiftKey
2. Tap 'Typing'
3. Toggle the 'Quick period' setting on or off