$ git clone -n https://src.fedoraproject.org/rpms/rust-escargot.git /var/lib/mock/f40-build-2036230-48011/root/chroot_tmpdir/scmroot/rust-escargot
Cloning into '/var/lib/mock/f40-build-2036230-48011/root/chroot_tmpdir/scmroot/rust-escargot'...
$ git fetch origin 08ee8401878e5cec6e73af5395794e6f633dc568:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-escargot
 * [new ref]         08ee8401878e5cec6e73af5395794e6f633dc568 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 08ee840 Update to version 0.5.8; Fixes RHBZ#2228536