For example, a user entered:

Hello we seem to be experiencing issues with the ability to enter spaces when intitially writing text


It appeared as:

Helloweseemtobeexperiencingissueswiththeabilitytoenterspaceswhenintitiallwritingtext


There is a filed report on the Google Chromium project website:

https://bugs.chromium.org/p/chromium/issues/detail?id=659109

It seems like this bug was introduced in Chrome 54 and will be fixed in Chrome 55.