$ git clone -n http://git.inferitos.ru/rpms/imaptest /var/lib/mock/inferit-8_10-bootstrap-build-54713-117842/root/chroot_tmpdir/scmroot/imaptest
Cloning into '/var/lib/mock/inferit-8_10-bootstrap-build-54713-117842/root/chroot_tmpdir/scmroot/imaptest'...
$ git fetch origin changed/i9/imaptest-20210507-2.el9:KOJI_FETCH_HEAD
error: cannot update ref 'refs/heads/KOJI_FETCH_HEAD': trying to write non-commit object 2a56da920f0d5f979469bfc2da27dcf02b2fc1ba to branch 'refs/heads/KOJI_FETCH_HEAD'
From http://git.inferitos.ru/rpms/imaptest
 ! [new tag]         changed/i9/imaptest-20210507-2.el9 -> KOJI_FETCH_HEAD  (unable to update local ref)
$ git reset --hard changed/i9/imaptest-20210507-2.el9
HEAD is now at bc1d9c4 import imaptest-20210507-2.el9