$ git clone -n http://git.inferitos.ru/rpms/firefox /var/lib/mock/inferit-8_8-build-el8_8-35448-72267/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/inferit-8_8-build-el8_8-35448-72267/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin changed/i8/firefox-115.4.0-1.el8_8.inferit:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/firefox
 * [new tag]         changed/i8/firefox-115.4.0-1.el8_8.inferit -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eea350b Merge branch 'i8c' with version 115.4.0-1 into i8