$ git clone -n https://src.fedoraproject.org/rpms/rust-onefetch-ascii.git /var/lib/mock/f43-build-side-115039-61046238-6588142/root/chroot_tmpdir/scmroot/rust-onefetch-ascii
Cloning into '/var/lib/mock/f43-build-side-115039-61046238-6588142/root/chroot_tmpdir/scmroot/rust-onefetch-ascii'...
$ git fetch origin 17a08d49c138274990b736dd4c76979e339c5a7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-onefetch-ascii
 * [new ref]         17a08d49c138274990b736dd4c76979e339c5a7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17a08d4 Update to version 2.25.0; Fixes RHBZ#2376539