package qtest is incompatible with latest oasis (v0.4.7)

[UnixJunkie]

oasis 0.4.7 Dropped support for OASISFormat 0.2 and 0.1.

# opam --version
1.2.2
# opam switch
4.03.0        C 4.03.0        Official 4.03.0 release

# opam install qtest
The following actions will be performed:
  ∗  install qtest 2.1.1

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[qtest] Archive in cache

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[ERROR] The compilation of qtest failed at "ocaml do.ml qtest build
        /home/berenger/.opam/4.03.0".
Processing  1/1: [qtest: ocaml do.ml]
#=== ERROR while installing qtest.2.1.1 =======================================#
# opam-version 1.2.2
# os           linux
# command      ocaml do.ml qtest build /home/berenger/.opam/4.03.0
# path         /home/berenger/.opam/4.03.0/build/qtest.2.1.1
# compiler     4.03.0
# exit-code    2
# env-file     /home/berenger/.opam/4.03.0/build/qtest.2.1.1/qtest-25778-1872ec.env
# stdout-file  /home/berenger/.opam/4.03.0/build/qtest.2.1.1/qtest-25778-1872ec.out
# stderr-file  /home/berenger/.opam/4.03.0/build/qtest.2.1.1/qtest-25778-1872ec.err
### stdout ###
# 
# #### oasis setup ####
# 
### stderr ###
# E: OASIS format version '0.2' is not supported.
# Exception: Failure "failed command".

=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  ∗  install qtest 2.1.1
No changes have been performed

[UnixJunkie]

@c-cube @vincent-hugot

[samoht]

I think this is fixed by #7281 #7308