$ git clone -n https://src.fedoraproject.org/rpms/rust-shlex.git /var/lib/mock/f45-build-44955-820/root/chroot_tmpdir/scmroot/rust-shlex
Cloning into '/var/lib/mock/f45-build-44955-820/root/chroot_tmpdir/scmroot/rust-shlex'...
$ git fetch origin 244a7cca8ed8f7463b06d4c796e4b455daf372af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-shlex
 * [new ref]         244a7cca8ed8f7463b06d4c796e4b455daf372af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 244a7cc Update to version 2.0.1; Fixes RHBZ#2478224