$ git clone -n http://git.inferitos.ru/rpms/firefox /var/lib/mock/inferit-8_8-build-el8_7-13555-23035/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/inferit-8_8-build-el8_7-13555-23035/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin changed/i8c/firefox-102.9.0-3.el8_7:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/firefox
 * [new tag]         changed/i8c/firefox-102.9.0-3.el8_7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7eeda1 edit changelog for import firefox-102.9.0-3.el8_7