$ git clone -n https://src.fedoraproject.org/rpms/rust-anyhow.git /var/lib/mock/f45-build-40077-767/root/chroot_tmpdir/scmroot/rust-anyhow
Cloning into '/var/lib/mock/f45-build-40077-767/root/chroot_tmpdir/scmroot/rust-anyhow'...
$ git fetch origin 595abc5b5cbde8b0df4bd01cb9958b7cd65cf5a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-anyhow
 * [new ref]         595abc5b5cbde8b0df4bd01cb9958b7cd65cf5a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 595abc5 Update to version 1.0.104; Fixes RHBZ#2502110