$ git clone -n https://src.fedoraproject.org/rpms/perl-TermReadKey.git /var/lib/mock/f40-build-779668-130430/root/chroot_tmpdir/scmroot/perl-TermReadKey
Cloning into '/var/lib/mock/f40-build-779668-130430/root/chroot_tmpdir/scmroot/perl-TermReadKey'...
$ git fetch origin e1c87a6f07fac92951c09575960d91709a408cec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-TermReadKey
 * [new ref]         e1c87a6f07fac92951c09575960d91709a408cec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1c87a6 Package tests