validate.yml templates (assembly root and family root): .gitmodules urls are read with git config --get-regexp '\.url$' | cut -d' ' -f2- or | while read -r _ url, so a section name holding a space gives a wrong url #741

Goal: the two validate.yml templates read each submodule url from .gitmodules as git does. A section name holding a space, which #700 makes the doctor read correctly, then gives the right url in CI too.

Filed by lane openRepoShape-3 under v1.1.1, on Brett Heap's word of 2026-10-16T13:35:28Z ("yes create v1.1.1"). #700's writer (W668) found it while fixing the doctor's own reading for #668. It is not a regression.

What happens. The templates on main de926142 split git config --file .gitmodules --get-regexp '\.url$' output at the first space:

• templates/assembly-root/.github/workflows/validate.yml:87 uses | cut -d' ' -f2-. :173 and :220 use | while read -r _ url.
• templates/family-root/.github/workflows/validate.yml:83 uses | cut -d' ' -f2-. :174 and :214 use | while read -r _ url.
• --get-regexp prints submodule.<name>.url <url>. For a section named members/My IRRS, the key holds a space, so the split gives the url IRRS.url /r/IRRS.git. W668 measured this.

What to do:

• Read the urls NUL-separated (git config -z --file .gitmodules --get-regexp '\.url$'), and split each record at its first newline: key, then value.
• Alternatively, list the paths first and ask git for each url by its exact key.
• Test it with a section name holding a space, in both templates, through the steps that use the url.
• Both files are pinned template copies, so a change costs each project and each holder an upstream-changed row. The PR body says so.

Lands after: #700.