Bug#959188: gnome-terminal: SHELL env variable honored only for first tab not for subsequent open tabs in the same window

[tglman]

Package: gnome-terminal
Version: 3.36.1.1-3
Severity: normal

Dear Maintainer,

When running gnome terminal with a environment variable SHELL this is honored
only at the first tab, not of subsequent tabs

example running

env SHELL=/usr/bin/fish gnome-terminal

will open a window with the fish shell, but then opening a new tab in that
window will use the system default shell.

Thank you



-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.5.0-2-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_WARN, TAINT_CRAP
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-terminal depends on:
ii  dbus-user-session [default-dbus-session-bus]  1.12.16-2
ii  dbus-x11 [dbus-session-bus]                   1.12.16-2
ii  dconf-gsettings-backend [gsettings-backend]   0.36.0-1
ii  gnome-terminal-data                           3.36.1.1-3
ii  gsettings-desktop-schemas                     3.36.0-1
ii  libatk1.0-0                                   2.36.0-2
ii  libc6                                         2.30-4
ii  libdconf1                                     0.36.0-1
ii  libglib2.0-0                                  2.64.2-1
ii  libgtk-3-0                                    3.24.18-1
ii  libpango-1.0-0                                1.44.7-4
ii  libuuid1                                      2.34-0.1
ii  libvte-2.91-0                                 0.60.1-1
ii  libx11-6                                      2:1.6.9-2

Versions of packages gnome-terminal recommends:
ii  gvfs                               1.44.1-1
ii  nautilus-extension-gnome-terminal  3.36.1.1-3
ii  yelp                               3.36.0-1

gnome-terminal suggests no packages.

-- no debconf information