RE: 035_standby_logical_decoding might fail due to FATAL message lost inside libpq

Hi Alexander,

I applied your reproducer atop my HEAD (12d00048), but I could not reproduce.

In the first place, the postgres could not do the meson setup command after patching.
I got the below error:

```
Configuring Makefile.global using configuration

../postgres/src/test/meson.build:8:0: ERROR: Non-existent build file 'src/test/recovery_1/meson.build'
```

The build can be done if I restore changes in src/meson.build, but I could not
reproduce the failure if I run 035_standby_logicaldecoding.pl. Am I missing something?

Best regards,
Hayato Kuroda
FUJITSU LIMITED