$ git clone -n https://src.fedoraproject.org/rpms/rust-sequoia-cert-store.git /var/lib/mock/f40-build-2288250-55775/root/chroot_tmpdir/scmroot/rust-sequoia-cert-store
Cloning into '/var/lib/mock/f40-build-2288250-55775/root/chroot_tmpdir/scmroot/rust-sequoia-cert-store'...
$ git fetch origin 5d899b13dcc4cef1f6318034259dd90bc1485cc9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sequoia-cert-store
 * [new ref]         5d899b13dcc4cef1f6318034259dd90bc1485cc9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d899b1 Update to version 0.4.0; Fixes RHBZ#2253247