$ git clone -n http://git.inferitos.ru/rpms/xmlrpc-c /var/lib/mock/inferit-8_8-build-12958-22692/root/chroot_tmpdir/scmroot/xmlrpc-c
Cloning into '/var/lib/mock/inferit-8_8-build-12958-22692/root/chroot_tmpdir/scmroot/xmlrpc-c'...
$ git fetch origin changed/i8c/xmlrpc-c-1.51.0-8.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/xmlrpc-c
 * [new tag]         changed/i8c/xmlrpc-c-1.51.0-8.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17ebc51 edit changelog for import xmlrpc-c-1.51.0-8.el8