This is no longer necessary b/c the current YAML parser, ruamel.yaml, implements YAML 1.2 in contrast to the previous parser PyYAML.
These changes do not change the resulting internal data format from reading with
read_metadata as well as (re-)writing with
write_yaml for fdroiddata. This can be verified via the instructions from !1238 (comment 1216894800) .
The instructions can be used analogously for other repositories.