I told SVN to no longer ignore a properties file, but it still is

Question

Using Tortoise SVN 1.6.16

Steps

1. In the SVN repo directory, right click and select TortoiseSVN -> Properties.
2. Select the property svn:ignore and Edit.
3. Remove the desired file name from the property (in my case it was the only file, so the property is now empty).

4. Click OK a time or two.
5. In the SVN repo directory right click and select SVN update.

Expected result: The file gets updated.

Actual result: The file is still "skippped."

Other things I have tried include completely deleting the svn:ignore property, and even restarting this computer.

Answer 1

This worked, but other answers are still welcome:

1. "Add" the file (but do not commit).
2. "Revert" the file.
3. "Update" the file.

In that order.