$ git clone -n https://src.fedoraproject.org/rpms/ghc-iproute.git /var/lib/mock/f38-build-side-42-init-devel-727418-27334/root/chroot_tmpdir/scmroot/ghc-iproute
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-727418-27334/root/chroot_tmpdir/scmroot/ghc-iproute'...
$ git fetch origin 655de8e902fff89f9ea84e91ed4d2c4dac0b2a37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-iproute
 * [new ref]         655de8e902fff89f9ea84e91ed4d2c4dac0b2a37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 655de8e Convert to %autorelease and %autochangelog