$ git clone -n https://src.fedoraproject.org/rpms/nemo-extensions.git /var/lib/mock/f39-build-1690703-41136/root/chroot_tmpdir/scmroot/nemo-extensions
Cloning into '/var/lib/mock/f39-build-1690703-41136/root/chroot_tmpdir/scmroot/nemo-extensions'...
$ git fetch origin 2c35c8d729355c59195c6a6cf98efa843fa2a2b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nemo-extensions
 * [new ref]         2c35c8d729355c59195c6a6cf98efa843fa2a2b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c35c8d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild