FabioLolix [1] filed a deletion request for moodle-stable [2]:
Duplicate of 'moodle', user VVL didn't even wait a day after flagging
OOD before uploading
[1] https://aur.archlinux.org/account/FabioLolix/
[2] https://aur.archlinux.org/pkgbase/moodle-stable/
These packages are different. The moodle package uses the current branch, while the moodle-stable package uses the stable release branch. Also, the moodle-stable package uses native archlinux file system mechanics.