$ git clone -n http://git.inferitos.ru/rpms/mozilla-filesystem /var/lib/mock/inferit-8_8-build-15252-23060/root/chroot_tmpdir/scmroot/mozilla-filesystem
Cloning into '/var/lib/mock/inferit-8_8-build-15252-23060/root/chroot_tmpdir/scmroot/mozilla-filesystem'...
$ git fetch origin changed/i8c/mozilla-filesystem-1.9-19.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mozilla-filesystem
 * [new tag]         changed/i8c/mozilla-filesystem-1.9-19.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8081ef edit changelog for import mozilla-filesystem-1.9-19.el8