$ git clone -n https://src.fedoraproject.org/rpms/rust-form_urlencoded.git /var/lib/mock/f38-build-side-43-rust-devel-1397454-31052/root/chroot_tmpdir/scmroot/rust-form_urlencoded
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397454-31052/root/chroot_tmpdir/scmroot/rust-form_urlencoded'...
$ git fetch origin e6c40ad73f1c0df8c4c2a5b6935c43475d5180bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-form_urlencoded
 * [new ref]         e6c40ad73f1c0df8c4c2a5b6935c43475d5180bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6c40ad Update to version 1.2.0; Fixes RHBZ#2212339