[MCL-18847] longjmp-based crash makes it impossible to play minecraft.

After initially encountering the issue in ~~MCL-18836~~, and installing libsecret, I was able to actually get the launcher to boot up. However, it always crashes with the following error after a few seconds:

*** longjmp causes uninitialized stack frame ***: terminated

While this always happens occasionally for me, it's 100% consistent now. What's worse is that, because the launcher now asks me to log in every time I boot it up, the time between boot-up and game launch is eaten up by having to type in credentials over and over. I don't know if I'm being asked all the time because the crash keeps it from saving login data properly, or if it's me ignoring the pop-up for the gnome-keyring password thing (in a hurried rush to get to the "play game" button in time).

I have a coredump of the crash, but I don't know if I'm allowed to upload it (or how to sanitize it to remove any personal information that may be there). At the very least I can share the backtrace when opening it with gdb, though I'm afraid it might not help much:

#0  0x00007f1430d5351e in raise () at /lib64/libc.so.6
#1  0x00007f1430d3d536 in abort () at /lib64/libc.so.6
#2  0x00007f1430d95ad9 in  () at /lib64/libc.so.6
#3  0x00007f1430e25312 in __fortify_fail () at /lib64/libc.so.6
#4  0x00007f1430e2522d in  () at /lib64/libc.so.6
#5  0x00007f1430e2518e in __longjmp_chk () at /lib64/libc.so.6
#6  0x00007f142ece0fe5 in  () at /usr/lib64/libcurl.so.4
#7  0x00007f1431b33660 in <signal handler called> () at /lib64/libpthread.so.0
#8  0x00007f1430e0acff in poll () at /lib64/libc.so.6
#9  0x00007f1430556e5e in  () at /usr/lib64/libglib-2.0.so.0
#10 0x00007f1430556f7f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#11 0x00007f141a822592 in  ()
#12 0x000000000291be28 in  ()
#13 0x00000001aaaaaa00 in  ()
#14 0x0000006785829a2a in  ()
#15 0x0000006784e382a6 in  ()
#16 0x00007ffe78dff108 in  ()
#17 0x000000000291be20 in  ()
#18 0x0000000000000001 in  ()
#19 0x7fffffffffffffff in  ()
#20 0x00007ffe78dff0c0 in  ()
#21 0x00007f141a86b5ca in  ()
#22 0x00000000026fef70 in  ()
#23 0x00007ffe78dff4e0 in  ()
#24 0x00007ffe78dff108 in  ()
#25 0x00007ffe78dff190 in  ()
#26 0x00007ffe78dff150 in  ()
#27 0x00007f141a841e6e in  ()
#28 0x00007f141f8ad928 in  ()
#29 0x00007ffe78dff100 in  ()
#30 0x0000000002dbc260 in  ()
#31 0x00007f141a8b0d4b in  ()
#32 0x00000000028f7d50 in  ()
#33 0x0000000002dbc6b0 in  ()
#34 0x0000000000000000 in  ()

Additionally, if there are any resources on why I'm required to have libsecret installed now, that'd be great. I'm guessing there's a change in how the launcher handles account information, but a link to where I can learn about such changes would be appreciated. Then I could work out if I can avoid using gnome-keyring on my non-gnome desktop, and about any future suddenly-required libraries.