sudo: SUDO_USER is wrong and SUDO_UID is missing

[cebtenzzre]

Expected Result

On Linux:

$ sudo sh -c 'printf "%s\n" user=$SUDO_USER uid=$SUDO_UID gid=$SUDO_GID'
user=cebtenzzre
uid=1000
gid=1000

Actual Result

On Termux with tsu version 8.6.0:

$ sudo sh -c 'printf "%s\n" user=$SUDO_USER uid=$SUDO_UID gid=$SUDO_GID'
user=10394
uid=
gid=10394

SUDO_USER is actually the user ID, and SUDO_UID is not set.

Analysis

At a glance, it looks like there's a copy-paste error here:

tsu/shell/tsu.sh

Lines 172 to 174 in 5543412

	EXP_ENV[SUDO_GID]="$(id -g)"
	EXP_ENV[SUDO_USER]="$(id -un)"
	EXP_ENV[SUDO_USER]="$(id -u)"