$ git clone -n https://src.fedoraproject.org/rpms/homebank.git /var/lib/mock/f39-build-1492735-34532/root/chroot_tmpdir/scmroot/homebank
Cloning into '/var/lib/mock/f39-build-1492735-34532/root/chroot_tmpdir/scmroot/homebank'...
$ git fetch origin 2ddcdebe80dd25ecb1b54c247daedc0d495592d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/homebank
 * [new ref]         2ddcdebe80dd25ecb1b54c247daedc0d495592d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ddcdeb homebank-5.7