$ git clone -n https://src.fedoraproject.org/rpms/extremetuxracer.git /var/lib/mock/f39-build-1707041-41222/root/chroot_tmpdir/scmroot/extremetuxracer
Cloning into '/var/lib/mock/f39-build-1707041-41222/root/chroot_tmpdir/scmroot/extremetuxracer'...
$ git fetch origin dfb17f625d8e4d347f24fc8a1ad6322c0b5ec044:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/extremetuxracer
 * [new ref]         dfb17f625d8e4d347f24fc8a1ad6322c0b5ec044 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfb17f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild