There's an easy workaround. I use a keybinding such that when searching through commands with Ctrl-R I can press ? to display the the full wrapped command in a preview window at the bottom of the screen.

My Ctrl-R config is at https://gist.github.com/brbsix/5e4f18833133b3accac78e3331292... but the line below is the relevant bit:

    # View full command in preview window (?)
    export FZF_CTRL_R_OPTS="${FZF_CTRL_R_OPTS:+$FZF_CTRL_R_OPTS }--preview 'echo {}' --preview-window down:5:hidden:wrap --bind '?:toggle-preview'"