$ git clone -n https://src.fedoraproject.org/rpms/itzam-core.git /var/lib/mock/f41-build-785987-13590/root/chroot_tmpdir/scmroot/itzam-core
Cloning into '/var/lib/mock/f41-build-785987-13590/root/chroot_tmpdir/scmroot/itzam-core'...
$ git fetch origin b9f544ed77fd676ee4d8bc168a9eb6f5ba7633b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/itzam-core
 * [new ref]         b9f544ed77fd676ee4d8bc168a9eb6f5ba7633b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9f544e Eliminate use of obsolete %patchN syntax (#2283636)