$ git clone -n http://git.inferitos.ru/rpms/rubygem-rspec-core /var/lib/mock/inferit-8_8-build-27806-46484/root/chroot_tmpdir/scmroot/rubygem-rspec-core
Cloning into '/var/lib/mock/inferit-8_8-build-27806-46484/root/chroot_tmpdir/scmroot/rubygem-rspec-core'...
$ git fetch origin changed/i8c/rubygem-rspec-core-3.7.1-5.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/rubygem-rspec-core
 * [new tag]         changed/i8c/rubygem-rspec-core-3.7.1-5.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a744dea edit changelog for import rubygem-rspec-core-3.7.1-5.el8