$ git clone -n https://src.fedoraproject.org/rpms/SDL2_mixer.git /var/lib/mock/f39-build-1623569-38952/root/chroot_tmpdir/scmroot/SDL2_mixer
Cloning into '/var/lib/mock/f39-build-1623569-38952/root/chroot_tmpdir/scmroot/SDL2_mixer'...
$ git fetch origin 0f18853d9d3a22aef17e6a44622c9ace97047df4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/SDL2_mixer
 * [new ref]         0f18853d9d3a22aef17e6a44622c9ace97047df4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f18853 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild