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Crashes when linking with debug version of Sync

See original GitHub issue

Moving #5346 to a separate issue, so we can track it.

Observations so far:

Only crash on armeabi-v7a with objectServerDebug builds. x86 and 64 bit variants do not crash.
Debug builds with baseDebug do not crash.
Release builds for both base and ObjectServer do not crash. This only effect debug builds.
Using -O0/01/02 instead of -Og does not make a difference.

The problematic method is:

void ObjectStore::set_schema_columns(Group const& group, Schema& schema)
{
    for (auto& object_schema : schema) {
        auto table = table_for_object_schema(group, object_schema);
        if (!table) {
            continue;
        }
        for (auto& property : object_schema.persisted_properties) {
            property.table_column = table->get_column_index(property.name);
        }
    }
}

From https://github.com/realm/realm-object-store/blob/master/src/object_store.cpp#L777

For some reason Core returns realm::not_found (4294967295) for all non-latin names in get_column_index, while ascii names are correctly found. The columns have been verified to be there with the correct name (by going around the ObjectStore Property and directly querying Cores Table

Example of crash:

09-30 14:46:42.389 6362-6378/? E/REALM: /home/jenkins/workspace/lm_realm-core_release_4.0.0-LXTALRDDGEXO6MUGNEPKX627PBBN5UZMAYUDJFS3OHOQUQGYVBKA@5/src/realm/table.cpp:3270: [realm-core-4.0.0] Assertion failed: col_ndx < get_column_count() [4294967295, 5]
                                        IMPORTANT: if you see this error, please send this log to help@realm.io.
09-30 14:46:42.390 6362-6378/? A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 6378 (roidJUnitRunner)
09-30 14:46:42.583 6386-6386/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
09-30 14:46:42.583 6386-6386/? A/DEBUG: Build fingerprint: 'google/angler/angler:8.0.0/OPR6.170623.019/4299446:user/release-keys'
09-30 14:46:42.583 6386-6386/? A/DEBUG: Revision: '0'
09-30 14:46:42.583 6386-6386/? A/DEBUG: ABI: 'arm'
09-30 14:46:42.583 6386-6386/? A/DEBUG: pid: 6362, tid: 6378, name: roidJUnitRunner  >>> io.realm.test <<<
09-30 14:46:42.583 6386-6386/? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
09-30 14:46:42.584 6386-6386/? A/DEBUG:     r0 00000000  r1 000018ea  r2 00000006  r3 00000008
09-30 14:46:42.584 6386-6386/? A/DEBUG:     r4 000018da  r5 000018ea  r6 d4dc4ae8  r7 0000010c
09-30 14:46:42.584 6386-6386/? A/DEBUG:     r8 00000056  r9 f045be00  sl d4dc4e00  fp d4dc4b04
09-30 14:46:42.584 6386-6386/? A/DEBUG:     ip 00000000  sp d4dc4ad8  lr f24ac3b7  pc f24dc91c  cpsr 200f0010
09-30 14:46:42.669 6386-6386/? A/DEBUG: backtrace:
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #00 pc 0004a91c  /system/lib/libc.so (tgkill+12)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #01 pc 0001a3b3  /system/lib/libc.so (abort+54)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #02 pc 0081255c  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (please_report_this_error_to_help_at_realm_dot_io+8)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #03 pc 008126b8  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (_ZN5realm4utilL18terminate_internalERSt18basic_stringstreamIcSt11char_traitsIcESaIcEE+292)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #04 pc 00812864  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (_ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE+204)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #05 pc 0022e4a4  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (_ZN5realm4util9terminateIJjjEEEvPKcS3_lDpT_+64)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #06 pc 007c419c  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (_ZN5realm5Table3setIxEEvjjT_b+116)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #07 pc 002aba38  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/lib/arm/librealm-jni.so (Java_io_realm_internal_UncheckedRow_nativeSetLong+380)
09-30 14:46:42.669 6386-6386/? A/DEBUG:     #08 pc 0002ea8d  /data/app/io.realm.test-XOMfyZ3eUFI23v8N6vwQtw==/oat/arm/base.odex (offset 0x21000)