Re: Incremental View Maintenance, take 2

I cannot build the doc.
git clean -fdx
git am ~/Desktop/tmp/*.patch

Applying: Add a syntax to create Incrementally Maintainable Materialized Views
Applying: Add relisivm column to pg_class system catalog
Applying: Allow to prolong life span of transition tables until transaction end
Applying: Add Incremental View Maintenance support to pg_dump
Applying: Add Incremental View Maintenance support to psql
Applying: Add Incremental View Maintenance support
Applying: Add DISTINCT support for IVM
Applying: Add aggregates support in IVM
Applying: Add support for min/max aggregates for IVM
Applying: Add regression tests for Incremental View Maintenance
Applying: Add documentations about Incremental View Maintenance
.git/rebase-apply/patch:79: trailing whitespace.
clause.
warning: 1 line adds whitespace errors.

Because of this, the {ninja docs} command failed. ERROR message:

[6/6] Generating doc/src/sgml/html with a custom command
FAILED: doc/src/sgml/html
/usr/bin/python3
../../Desktop/pg_sources/main/postgres/doc/src/sgml/xmltools_dep_wrapper
--targetname doc/src/sgml/html --depfile doc/src/sgml/html.d --tool
/usr/bin/xsltproc -- -o doc/src/sgml/ --nonet --stringparam pg.version
16beta2 --path doc/src/sgml --path
../../Desktop/pg_sources/main/postgres/doc/src/sgml
../../Desktop/pg_sources/main/postgres/doc/src/sgml/stylesheet.xsl
doc/src/sgml/postgres-full.xml
ERROR: id attribute missing on <sect2> element under /book[(at)id =
'postgres']/part[(at)id = 'server-programming']/chapter[(at)id =
'rules']/sect1[(at)id = 'rules-ivm']
error: file doc/src/sgml/postgres-full.xml
xsltRunStylesheet : run failed
ninja: build stopped: subcommand failed.