$ git clone -n https://src.fedoraproject.org/rpms/rust-regex-automata.git /var/lib/mock/f40-build-2093390-50316/root/chroot_tmpdir/scmroot/rust-regex-automata
Cloning into '/var/lib/mock/f40-build-2093390-50316/root/chroot_tmpdir/scmroot/rust-regex-automata'...
$ git fetch origin 89153de4c9f0c1d2832bc3c7729f257418a9833d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-regex-automata
 * [new ref]         89153de4c9f0c1d2832bc3c7729f257418a9833d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89153de Update to version 0.4.3; Fixes RHBZ#2244495