When text is selected, deselect current citation?

[billba]

If I start to select text on the PDF the assumption is that I am preparing to add a citation. If that's the case then it may not make sense to have a citation selected.

Counterpoints:

• sometimes people just select text idly, as kind of a fidget spinner.
• the user may be trying to "replace" the current citation with a better version of the excerpt, and so it's useful to see the current excerpt

[billba]

Based on counterpoints, the decision is to keep current citation selection while selecting text