$ git clone -n https://src.fedoraproject.org/rpms/rust-markup5ever.git /var/lib/mock/f40-build-2653053-66898/root/chroot_tmpdir/scmroot/rust-markup5ever
Cloning into '/var/lib/mock/f40-build-2653053-66898/root/chroot_tmpdir/scmroot/rust-markup5ever'...
$ git fetch origin 33bbb0f48d659e2b4d13d5c6b1226e87cf0d20cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-markup5ever
 * [new ref]         33bbb0f48d659e2b4d13d5c6b1226e87cf0d20cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33bbb0f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild