Description of problem:
This fails in rhel8.8 as well, so I'm not sure this ever worked.

[root@virt-506 ~]# lvcreate --type raid0 -i 2 -L 200M -n stripe1 myvg
Using default stripesize 64.00 KiB.
Logical volume "stripe1" created.

[root@virt-506 ~]# lvs -a -o +devices
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices
stripe1 myvg rwi-a-r--- 200.00m stripe1_rimage_0(0),stripe1_rimage_1(0)
[stripe1_rimage_0] myvg iwi-aor--- 100.00m /dev/sda(0)
[stripe1_rimage_1] myvg iwi-aor--- 100.00m /dev/sdb(0)

[root@virt-506 ~]# lvextend myvg/stripe1 -L 542G
Using stripesize of last segment 64.00 KiB
Insufficient free space: 138702 extents needed, but only 76745 available

[root@virt-506 ~]# lvextend -i1 -l+100%FREE myvg/stripe1
Segmentation fault (core dumped)

Apr 24 17:17:01 virt-506 kernel: traps: lvextend[993422] general protection fault ip:5654ba5ccfaf sp:7ffee0f26a60 error:0 in lvm[5654ba506000+192000]

Version-Release number of selected component (if applicable):
kernel-5.14.0-283.el9 BUILT: Fri Feb 24 12:35:52 AM CET 2023
lvm2-2.03.20-2.el9 BUILT: Thu Apr 6 01:40:29 PM CEST 2023
lvm2-libs-2.03.20-2.el9 BUILT: Thu Apr 6 01:40:29 PM CEST 2023