Bug 29043: Don't fetch biblios info unless a patron is picked

Bug 29043: Don't fetch biblios info unless a patron is picked

If we haven't picked a patron or a club yet we don't need to fetch
biblios, items and holdability infos

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 12666fe233493c7235efbfa5a20f488a0ffa2e8d)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>