Context menu missing in a reply email

Description

right click on an email address at the top of an email shows “copy” but not when right clicking an email at the top of a reply.

To Reproduce…

1.reply an email
2.right click one of the email in the cc, to,from field or the empty space in the field itself
= context menu (with copy paste) is missing

Expected Behavior

context menu appears with copy and paste

Screenshots

Setup

win10
installed from setup.exe file
mailspring 1.9.1