$ git clone -n https://src.fedoraproject.org/rpms/rubygem-activestorage.git /var/lib/mock/f40-build-1430125-23572/root/chroot_tmpdir/scmroot/rubygem-activestorage
Cloning into '/var/lib/mock/f40-build-1430125-23572/root/chroot_tmpdir/scmroot/rubygem-activestorage'...
$ git fetch origin 2fa02d6fc9064b0197c580ef98c085783e43a88c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-activestorage
 * [new ref]         2fa02d6fc9064b0197c580ef98c085783e43a88c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fa02d6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild