$ git clone -n https://src.fedoraproject.org/rpms/rust-utf8-width.git /var/lib/mock/f38-build-side-43-rust-devel-1410152-31414/root/chroot_tmpdir/scmroot/rust-utf8-width
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1410152-31414/root/chroot_tmpdir/scmroot/rust-utf8-width'...
$ git fetch origin ade879c2cedde39358839579bb57985fa9098ffb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-utf8-width
 * [new ref]         ade879c2cedde39358839579bb57985fa9098ffb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ade879c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild