$ git clone -n https://src.fedoraproject.org/rpms/libsigc++30.git /var/lib/mock/f41-build-825786-154714/root/chroot_tmpdir/scmroot/libsigc++30
Cloning into '/var/lib/mock/f41-build-825786-154714/root/chroot_tmpdir/scmroot/libsigc++30'...
$ git fetch origin 828dcec31ccad8b17bc0e9c597413dff66877436:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsigc++30
 * [new ref]         828dcec31ccad8b17bc0e9c597413dff66877436 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 828dcec Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild