This is one of several possible bug reports on
"doc/bugs/About %2F problem" (I'm not sure what the actual bug being
reported is).
Signed-off-by: Simon McVittie <smcv@debian.org>
This hopefully fixes a race condition in which the test failed
around 6% of the time.
If we don't wait, the mtime (which is rounded down to 1 second precision
in the APIs we use) will not necessarily change, so the update will not
necessarily cause the page to be refreshed.
Bug-Debian: https://bugs.debian.org/862494