Using custom URLS and strip prefix giving an unexpected result.

[Zeed-gn]

Trying to use LLVM 19.1.0 release with the following scheme:

llvm = use_extension("@toolchains_llvm//toolchain/extensions:llvm.bzl", "llvm")
llvm.toolchain(
    name = "llvm_toolchain",
    llvm_versions = {"": "19.1.0"},
    urls = {
        "": ["https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.0/LLVM-19.1.0-Linux-X64.tar.xz"],
    },
    sha256 = {
        "": "",
    },
    strip_prefix = {
        "": "LLVM-19.1.0-Linux-X64",
    },
)
use_repo(llvm, "llvm_toolchain")
register_toolchains("@llvm_toolchain//:all")

If I specify the hash, i end up with the following error:

Error in download_and_extract: java.io.IOException: Error extracting /home/user/.cache/bazel/_bazel_gevalentino/85ee35e2f2022d11c5822a0c418173da/external/toolchains_llvm~~llvm~llvm_toolchain_llvm/temp8826659762722954971/LLVM-19.1.0-Linux-X64.tar.xz to /home/user/.cache/bazel/_bazel_gevalentino/85ee35e2f2022d11c5822a0c418173da/external/toolchains_llvm~~llvm~llvm_toolchain_llvm/temp8826659762722954971: Prefix "LLVM-19.1.0-Linux-X64" was given, but not found in the archive. Here are possible prefixes for this archive: "clang+llvm-18.1.7-x86_64-linux-gnu-ubuntu-18.04".

Not sure where that prefix comes from either. Not specifying the hash, the build succeeds. I'm just trying to set up a project to use llvm and clang as the toolchain.