$ git clone -n https://src.fedoraproject.org/rpms/httpcomponents-client.git /var/lib/mock/f41-build-2442898-25478/root/chroot_tmpdir/scmroot/httpcomponents-client
Cloning into '/var/lib/mock/f41-build-2442898-25478/root/chroot_tmpdir/scmroot/httpcomponents-client'...
$ git fetch origin aaea4d7192992fc78a4924f4366bf94b10b413ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/httpcomponents-client
 * [new ref]         aaea4d7192992fc78a4924f4366bf94b10b413ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aaea4d7 Convert to %autorelease and %autochangelog