$ git clone -n https://src.fedoraproject.org/rpms/rust-insta.git /var/lib/mock/f42-build-3231273-41191/root/chroot_tmpdir/scmroot/rust-insta
Cloning into '/var/lib/mock/f42-build-3231273-41191/root/chroot_tmpdir/scmroot/rust-insta'...
$ git fetch origin b639f665159248300b77bcd648da1e20764ec0ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-insta
 * [new ref]         b639f665159248300b77bcd648da1e20764ec0ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b639f66 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild