$ git clone -n https://src.fedoraproject.org/rpms/90-Second-Portraits.git /var/lib/mock/f40-build-2523399-61805/root/chroot_tmpdir/scmroot/90-Second-Portraits
Cloning into '/var/lib/mock/f40-build-2523399-61805/root/chroot_tmpdir/scmroot/90-Second-Portraits'...
$ git fetch origin 90d7c30c813a323586b0db72f3fb6ab8a36e808f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/90-Second-Portraits
 * [new ref]         90d7c30c813a323586b0db72f3fb6ab8a36e808f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90d7c30 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild