$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-command.git /var/lib/mock/f38-build-side-42-init-devel-1144546-30457/root/chroot_tmpdir/scmroot/rust-gix-command
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1144546-30457/root/chroot_tmpdir/scmroot/rust-gix-command'...
$ git fetch origin 3b7d0148258fa95905a3c5315bd6e9b2bd2975ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-command
 * [new ref]         3b7d0148258fa95905a3c5315bd6e9b2bd2975ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b7d014 Update to version 0.2.8; Fixes RHBZ#2224734