$ git clone -n http://git.inferitos.ru/rpms/crontabs /var/lib/mock/inferit-8_8-build-15810-23072/root/chroot_tmpdir/scmroot/crontabs
Cloning into '/var/lib/mock/inferit-8_8-build-15810-23072/root/chroot_tmpdir/scmroot/crontabs'...
$ git fetch origin changed/i8c/crontabs-1.11-17.20190603git.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/crontabs
 * [new tag]         changed/i8c/crontabs-1.11-17.20190603git.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6694ef2 edit changelog for import crontabs-1.11-17.20190603git.el8