$ git clone -n http://git.inferitos.ru/rpms/tinyxml2 /var/lib/mock/inferit-8_8-build-27690-46213/root/chroot_tmpdir/scmroot/tinyxml2
Cloning into '/var/lib/mock/inferit-8_8-build-27690-46213/root/chroot_tmpdir/scmroot/tinyxml2'...
$ git fetch origin changed/i8c/tinyxml2-6.0.0-3.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/tinyxml2
 * [new tag]         changed/i8c/tinyxml2-6.0.0-3.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 228c945 edit changelog for import tinyxml2-6.0.0-3.el8