Reproduction:
- Take a 64 bit Linux distribution
- Install a 32 bit Office build
- Install any number of extensions for 32 bit (or platform independent)
- Remove the office but keep the user profile
- Install a 62 bit Office build
- Start the office
- Open the Extension Manager
- > On the first attemt the extension Manager does just not open
- > On second attempt the office crashes

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f74c7c306f0 (LWP 8274)]
0x00007f74c55a1bba in cppu::OInterfaceContainerHelper::addInterface ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/../ure-link/lib/libuno_cppuhelpergcc3.so.3
(gdb) where
#0  0x00007f74c55a1bba in cppu::OInterfaceContainerHelper::addInterface ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/../ure-link/lib/libuno_cppuhelpergcc3.so.3
#1  0x00007f74c55a1fc3 in cppu::OMultiTypeInterfaceContainerHelper::addInterface ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/../ure-link/lib/libuno_cppuhelpergcc3.so.3
#2  0x00007f74b300f90d in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libfwklx.so
#3  0x00007f74ab633d51 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/deploymentguilx.uno.so
#4  0x00007f74ab6359da in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/deploymentguilx.uno.so
#5  0x00007f74ab60fc4c in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/deploymentguilx.uno.so
#6  0x00007f74ab60f22f in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/deploymentguilx.uno.so
#7  0x00007f74b31689d5 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libfwklx.so
#8  0x00007f74b3168b63 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libfwklx.so
#9  0x00007f74b30e1d2a in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libfwklx.so
#10 0x00007f74c311b466 in Menu::Select ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#11 0x00007f74c3115fc5 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#12 0x00007f74c317ba51 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#13 0x00007f74bbfb2e3f in SalDisplay::DispatchInternalEvent ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/openoffice.org/basis3.0/program/libvclplug_genlx.so
#14 0x00007f74bed51514 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/openoffice.org/basis3.0/program/libvclplug_gtklx.so
#15 0x00007f74bc21fea2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x00007f74bc22363d in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x00007f74bc2237fb in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#18 0x00007f74bed53185 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/openoffice.org/basis3.0/program/libvclplug_gtklx.so
#19 0x00007f74c2f9ae1e in Application::Yield ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#20 0x00007f74c2f9aef7 in Application::Execute ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#21 0x00007f74c73f83b8 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libsofficeapp.so
#22 0x00007f74c2fa0336 in ?? ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#23 0x00007f74c2fa0425 in SVMain ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libvcllx.so
#24 0x00007f74c743049c in soffice_main ()
   from
/home/skotti/test-offices/ooo300m2-x86_64/so-9-bin-linux-en-US/staroffice9/program/../basis-link/program/libsofficeapp.so
#25 0x000000000040119b in main ()