Looking at pulseaudio upstream, it looks like 12.2 has
15386a710c1500f70085a6312fb4d84be4d254c9 and
c7fe78c9f73ded2c3428666722ec9c1af4b82812
but not
83675b3745c64bd738400eae44eb4daa195ed88a
fe6a9a8f59932f29cc77eac2a7e2c6bd07c8c7d0
3454c19f3c277d5d0099f17e7ebf5d2005afa4b0
Looking at pulseaudio upstream, it looks like 12.2 has 70085a6312fb4d8 4be4d254c9 and c3428666722ec9c 1af4b82812 738400eae44eb4d aa195ed88a 9cc77eac2a7e2c6 bd07c8c7d0 d0099f17e7ebf5d 2005afa4b0
15386a710c1500f
c7fe78c9f73ded2
but not
83675b3745c64bd
fe6a9a8f59932f2
3454c19f3c277d5
Bionic will needs all of the above sha's.