Unable to change Book Title in Left panel TOC after creating a book from toc

[schwabts]

Describe the bug

context I created

• source files of a Jupyter Book skeleton from TOC and
• the Jupyter Book skeleton itself in subfolder _build/ of book/

expectation The book title My Fancy Book in _toc.yml should appear in the left panel TOC above the search field when opening _build/html/docs/index.html in a browser.

bug But instead the correct book title only appeared in the left panel TOC below the search field since I updated the title of chapter 1 accordingly

1. Above the search box the title “My Jupyter Book” is still shown in the left panel TOC.
2. Searching for the wrong title “My Jupyter Book” in all files below the folder book/ does not yield any result, except the generated filed below book/_build/. I wonder where it magically comes from…
3. The correct title “My Fancy Book” does not show up anywhere.

problem Without finding the wrong title “My Jupyter Book” people don't know where to overwrite it with the correct title.

Related Issue #478.

I found out the tag <h1 class="site-logo" id="site-title"> is not populated with the title I expect to see but this is just a naive observation of someone without knowledge of the implementation of Jupyter Book.

Reproduce the bug

mkdir "My Fancy Book"
cd "My Fancy Book"
mkdir book
cd book

cat >_toc.yml <<EOF
	title: My Fancy Book
	format: jb-book
	root: docs/index
	chapters:
	- file: docs/1. chapter/index
	  sections:
	  - file: docs/1. chapter/1. section
EOF

cd ..
jupyter-book toc to-project -e md book/_toc.yml
jupyter-book build book

List your environment

Jupyter Book : 0.13.0 External ToC : 0.2.4 MyST-Parser : 0.15.2 MyST-NB : 0.13.2 Sphinx Book Theme : 0.3.3 Jupyter-Cache : 0.4.3 NbClient : 0.5.13