In the project settings you can edit meta data like the author. There is a table with two columns and some rows. It is possible to add your own rows and set the values in the first and second column. Though, it is also possible to change the values for the pre-existing rows and change "Author" to "Foobar". When you close the dialog and re-open it, this change is reset. It should not be possible to edit the pre-existing entries. Reproducible: Always
Update: You have to click on "Author" and press F2 to edit the text. Still happens with Kdenlive 16.04.1.
Git commit 67fc34952c31266cfe7589e5ffb52a307298b81a by Jean-Baptiste Mardelle. Committed on 24/06/2016 at 18:37. Pushed by mardelle into branch 'master'. Disable editing of project's metadata name M +12 -0 src/project/dialogs/projectsettings.cpp http://commits.kde.org/kdenlive/67fc34952c31266cfe7589e5ffb52a307298b81a
confirmed fixed in 16.07.70+git20160624