To test: Hanging chapter Lock
With the latest install, installed with single docker approach
I have't tried to replicate this, just noting here for @sidorelauku and @alexgeo to look into...
I was editing a book, came back the next day and noticed there was no edit function on one of the chapters. This may NOT be a bug... it could be that I had the chapter open and in edit mode in another tab. I am noting this here more for QA purposes as something to check before the release.