History of Credentials::scheme 1 change

In crates/oxy-strata/src/lib.rs, lines 91–97 on bf0247ee3590fb9049d7f49b8c382753df9151d16636667a9f3a15cf7f9fff0f. 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 91,97:crates/oxy-strata/src/lib.rs.