Bug 22289 – Can't `std.algorithm.mutation: copy` a `scope` string into an an `Appender` with DIP1000

``` import std.algorithm.mutation : copy; import std.array : Appender; void issueXXX (scope const char[] data) @safe { Appender!string buffer; copy(data, buffer); } ``` Expected: Compiles Actual result when compiled with `-preview=dip1000`: ``` onlineapp.d(7): Error: scope variable `data` assigned to non-scope parameter `source` calling std.algorithm.mutation.copy!(const(char)[], Appender!string).copy ``` This affects https://github.com/dlang-community/D-YAML

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