Description of problem:

Trying to install docbook-utils under an OSTree system would fail with 

```
error: Running %post for docbook-dtds: bwrap(/bin/sh): Child process killed by signal 1; run journalctl -t 'rpm-ostree(docbook-dtds.post)'
```

The output of the suggested journalct command is 
```
/usr/bin/chmod: cannot operate on dangling symlink '/etc/sgml/openjade.soc'
```


Version-Release number of selected component (if applicable):


How reproducible: all the time


Steps to Reproduce:
1. `rpm-ostree install docbook-utils`

Actual results:

Failure to install the requested package

Expected results:

The package should be installed properly

Additional info: