History of Field::label 1 change

In crates/backdrop/src/field.rs, lines 176–187 on d366306dae7d601bf141448c5454b89299847bb45ce14f84a23ffd13906a1c24. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 176,187:crates/backdrop/src/field.rs.