$ git clone -n https://src.fedoraproject.org/rpms/rust-async-session.git /var/lib/mock/f45-build-40279-770/root/chroot_tmpdir/scmroot/rust-async-session
Cloning into '/var/lib/mock/f45-build-40279-770/root/chroot_tmpdir/scmroot/rust-async-session'...
$ git fetch origin c43b65b24b1ace781e4beeae822a36ef432dccea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-session
 * [new ref]         c43b65b24b1ace781e4beeae822a36ef432dccea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c43b65b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild