I've tested master+user/berick/web-staff-phase1-squash on top of OpenSRF 2.3.0, and did not find any regressions with placing a hold or with adding an item to a (permanent) bookbag from within the staff client. I did observe the infinite redirect issue attempting to add an item to a temporary list, but I see that in 2.6.2 as well.
I've tested master+ user/berick/ web-staff- phase1- squash on top of OpenSRF 2.3.0, and did not find any regressions with placing a hold or with adding an item to a (permanent) bookbag from within the staff client. I did observe the infinite redirect issue attempting to add an item to a temporary list, but I see that in 2.6.2 as well.