$ git clone -n https://src.fedoraproject.org/rpms/rust-clap_builder.git /var/lib/mock/f45-bootstrap-170-108/root/chroot_tmpdir/scmroot/rust-clap_builder
Cloning into '/var/lib/mock/f45-bootstrap-170-108/root/chroot_tmpdir/scmroot/rust-clap_builder'...
$ git fetch origin 1a02fc3102f1dba525d395291b11a91b66d79a8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-clap_builder
 * [new ref]         1a02fc3102f1dba525d395291b11a91b66d79a8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a02fc3 Update to version 4.5.54; Fixes RHBZ#2426902