$ git clone -n https://src.fedoraproject.org/rpms/rust-input_buffer.git /var/lib/mock/f42-build-3231272-41191/root/chroot_tmpdir/scmroot/rust-input_buffer
Cloning into '/var/lib/mock/f42-build-3231272-41191/root/chroot_tmpdir/scmroot/rust-input_buffer'...
$ git fetch origin 91d4b95017d86e8b63ed79d26041b0f961978ffb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-input_buffer
 * [new ref]         91d4b95017d86e8b63ed79d26041b0f961978ffb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91d4b95 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild