gpg-agent keeps running after first time launch of Tor Browser

[AsciiWolf]

When the Tor Browser Launcher is started for a first time, it downloads the actual Tor Browser archive and verifies its gpg signature. However, after the Tor Browser window is closed by a user, gpg-agent process previously spawned by Tor Browser Launcher keeps running on a background:

asciiwo+ 3888 0.0 0.0 364736 856 ? Ss 19:24 0:00 gpg-agent --homedir /home/asciiwolf/.local/share/torbrowser/gnupg_homedir --use-standard-socket --daemon

Please, consider fixing this so the gpg-agent process is exited after closing Tor Browser.