$ git clone -n http://git.inferitos.ru/rpms/PyYAML /var/lib/mock/inferit-8_8-build-17151-23083/root/chroot_tmpdir/scmroot/PyYAML
Cloning into '/var/lib/mock/inferit-8_8-build-17151-23083/root/chroot_tmpdir/scmroot/PyYAML'...
$ git fetch origin changed/i8c/PyYAML-3.12-12.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/PyYAML
 * [new tag]         changed/i8c/PyYAML-3.12-12.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63dfa4d edit changelog for import PyYAML-3.12-12.el8