Copy from clipboard history removes item from history

[arnm]

System: macOs Sierra 10.12.1

Steps to reproduce:

1. Copy "item 1" to clipboard
2. Copy "item 2" to clipboard
3. Use this plugin to copy the "item 1" into clipboard
4. View plugin's clipboard history
5. Notice how "item 1" has been removed from the history and "item 2 " remains

Is this the intended behavior? It is very inconvenient to properly manage clipboard history with this behavior.

The desired effect would be the following:

• display clipboard history in "chronological" order (values recently added to the top)
• if a value is copied from the clipboard history, that item gets moved to the top, and is not removed from history
• if an a value which is already in the clipboard history is copied externally, do not duplicate the value in the history, move it to the top of the history
• If memory usage is an issue, expose a setting which would allow the user to specify how large the clipboard history should get