$ git clone -n https://src.fedoraproject.org/rpms/wasi-libc.git /var/lib/mock/f38-build-side-42-init-devel-1218479-30637/root/chroot_tmpdir/scmroot/wasi-libc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1218479-30637/root/chroot_tmpdir/scmroot/wasi-libc'...
$ git fetch origin e2ba3dbcc8b999b9e0c57471f86abccc401b60c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wasi-libc
 * [new ref]         e2ba3dbcc8b999b9e0c57471f86abccc401b60c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2ba3db Use -fno-strict-aliasing for emmalloc