$ git clone -n https://src.fedoraproject.org/rpms/rust-concat-idents.git /var/lib/mock/f40-build-2711496-71857/root/chroot_tmpdir/scmroot/rust-concat-idents
Cloning into '/var/lib/mock/f40-build-2711496-71857/root/chroot_tmpdir/scmroot/rust-concat-idents'...
$ git fetch origin 2e7cb27fb090615990f480aa855ddfd7f8859ddf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-concat-idents
 * [new ref]         2e7cb27fb090615990f480aa855ddfd7f8859ddf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e7cb27 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild