shape_materialize.py and bump-leg.py: a row holds YAML_NOT_TEXT_RE's exponents of two or more digits, the no-origin refusal for a tag the leg holds is true, and an else nothing reaches is gone (#1090's review follow-ups) #1103

Goal: the three things rv1090's review of #1090 (#912) left. Add a row that holds YAML_NOT_TEXT_RE's exponents of two or more digits, make one bump refusal true where the leg has no origin, and remove an else nothing reaches.

State

• Where it was found. rv1090, lane 5's independent reviewer, found these at shape_materialize.py, adopt-project.py and bump-leg.py: a tag a clone holds without its commit is one it cannot answer for, check says a commit it cannot ask was not asked, and a pinned product YAML 1.1 or 1.2 reads as no text is quoted (#912) #1090's head d5389eb6 (shape_materialize.py, adopt-project.py and bump-leg.py: a tag a clone holds without its commit is one it cannot answer for, check says a commit it cannot ask was not asked, and a pinned product YAML 1.1 or 1.2 reads as no text is quoted (#912) #1090 issuecomment-6316009648). Its verdict is READY.
  • None of the three is a defect in what shape_materialize.py, adopt-project.py and bump-leg.py: a tag a clone holds without its commit is one it cannot answer for, check says a commit it cannot ask was not asked, and a pinned product YAML 1.1 or 1.2 reads as no text is quoted (#912) #1090 ships: the head quotes each name below correctly.
  • shape_materialize.py, adopt-project.py and bump-leg.py: a tag a clone holds without its commit is one it cannot answer for, check says a commit it cannot ask was not asked, and a pinned product YAML 1.1 or 1.2 reads as no text is quoted (#912) #1090 lands in v1.2.0 without them.
• When it lands. Under Brett Heap's ruling of 2026-10-21T10:32:04Z ("leave the follow-ups out of v1.2.0"), this lands after the v1.2.0 tag.
• Line numbers are at d5389eb6.

What happens

1. No row has an exponent of two or more digits (the review's SHOULD).
   • Where: YAML_NOT_TEXT_RE at scripts/shape_materialize.py:542-543, and YAML_FLOATS at tests/test_neutral_pin_entry_one_spelling.py:92.
   • The mutant that survives (R2): change [0-9]+ to [0-9] in both of the rule's exponent groups. All 180 spelling and entry rows still pass.
   • What it would ship: --pin .5e-10@<sha>, .05E-12 and .5_e-10 written bare. PyYAML reads them as 5e-11, 5e-14 and 5e-11, and --pin accepts all three names.
   • Why no row catches it: every exponent in YAML_FLOATS has one digit, and PIN_NAMES stops at three characters, too short to hold .5e-10.
2. One bump refusal is untrue where the leg has no remote named origin (a NIT), at scripts/bump-leg.py:1263.
   • The case: --to is a tag id that the leg holds without its commit.
   • What it says: bump-leg-commit-not-on-remote: <tag id> is not in the leg's own object store. But the tag object is in the store.
   • How it was measured: _unreachable_refusal(..., fetched=False, has_origin=False) called on a clone that lacks the commit.
   • Before shape_materialize.py, adopt-project.py and bump-leg.py: a tag a clone holds without its commit is one it cannot answer for, check says a commit it cannot ask was not asked, and a pinned product YAML 1.1 or 1.2 reads as no text is quoted (#912) #1090, the same case read target-not-a-commit "names no commit", which was wrong too.
   • Where the words are true: with origin present, or under --local-remote-dir ("has no branch containing" the id).
3. A branch nothing reaches (a NIT), at scripts/bump-leg.py:1037-1038.
   • else: what = "is an annotated tag that names no commit" can no longer be reached from peeled_target.
   • For a tag, a missing peel now returns, a commit returns, and a tree or a blob takes the elif.
   • not_a_commit still needs that wording, because commit_on_forge uses it.

Direction

1. Add .5e-10, .5E+10, .5_e-10 and .5e10 to YAML_FLOATS, as the review suggests.
2. Word the no-origin case for a tag the leg holds so that it is true: say the tag is held and its commit is not. Keep the refusal's code.
3. Remove the else nothing reaches, keeping the wording not_a_commit needs.

Verify

• Mutant R2 fails the new rows and passes main's.
• One row holds the no-origin case for a held tag, and fails on main's words.
• No refusal code changes, and tests/test_agents_md_codes.py passes.

Found by lane 5's independent review of #1090 (#912), rv1090 (#1090 issuecomment-6316009648).

Milestone: none; it lands after the v1.2.0 tag (Brett Heap's 10:32:04Z ruling).

Lane: openreposhape-5 (openRepoShape-5)