In some cases, and I think also in this one, it's possible to park the bike forwards but anyway with the rear wheel in the stand, by lifting the front wheel up onto the wall. This has the advantages that you can easily access the lock even when other bikes are on both sides, the handle bars are out ofrof the way of the others, and the derailleur is tilted forwards by the wheelie-position, so it won't clash into the bars of the bike stand.