PlugInstall reports already up to date for plugins just installed

[julie777]

I get strange output when I run PlugInstall.

Example 1:
I have a file named dummy open in vim.
I run :PlugInstall
The Result is:

The first line has [Plugins] highlighted, but followed by dummy. I do not understand this line.

Example 2.
I do not have any plugins installed.
I have a file named dummy open in vim.
I run :PlugInstall
The Result is:

Vim-Plug installs the plugin as expected.
What I do not understand is the line
- fastfold: Already up to date.
Fastfold was just installed. It was not already up to date.