Open attachment 124062 [details] from bug 99074.
It opens in modified state in 5.4beta1, but not in 220.127.116.11. => regression
Bibisected to the following commit using repo bibisect-linux-64-5.4. Adding Cc: to Michael Stahl, please take a look sometimes.
author Michael Stahl <email@example.com> 2017-01-18 17:25:46 (GMT)
committer Michael Stahl <firstname.lastname@example.org> 2017-01-18 21:05:09 (GMT)
"tdf#99074 sw: remove duplicate property "IsBrowseMode" again"
The document doesn't open in web view now , so the issue isn't relevant anymore.