v2.0.0-beta.10

One fix since beta.9.

Closing the viewer unwinds the history entries it pushed, and until history.go() lands the URL still carries openfile=true, which is the flag the Files list opens a file for. Anything that made the list re-read the route inside that window opened a second viewer over the one that was closing. On a shared CI runner the window is wide enough to hit: three media tests in nextcloud/server#63954 failed their close assertion with two modal containers in the DOM, one per viewer.

The flag now comes off the entry being left before the jump is requested. #43