$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing-subscriber.git /var/lib/mock/f45-build-45611-824/root/chroot_tmpdir/scmroot/rust-tracing-subscriber
Cloning into '/var/lib/mock/f45-build-45611-824/root/chroot_tmpdir/scmroot/rust-tracing-subscriber'...
$ git fetch origin ed89fffc4d82ab518c225828a420d5e2845fc19b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing-subscriber
 * [new ref]         ed89fffc4d82ab518c225828a420d5e2845fc19b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed89fff Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild