$ git clone -n https://src.fedoraproject.org/rpms/rust-miette.git /var/lib/mock/f38-build-side-43-rust-devel-1397794-31053/root/chroot_tmpdir/scmroot/rust-miette
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397794-31053/root/chroot_tmpdir/scmroot/rust-miette'...
$ git fetch origin 399293d51447f4373d1a91a6cd2438094412b466:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-miette
 * [new ref]         399293d51447f4373d1a91a6cd2438094412b466 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 399293d Update to version 5.10.0; Fixes RHBZ#2223155