Tikz-Feynman: Putting multiple boson loops into each other

Question

I was trying to draw a Feynman diagram of a quark propagator in rainbow ladder truncation when I encountered a problem.
I need to draw multiple gluon loops within each other. Drawing one gluon loop is no problem, but trying to put another one into that results in something that looks like

The problem are the last two diagrams in that equation. What I want is the diagrams to look somewhat like

Please, excuse my bad drawing. I hope you get, what I mean. I produced the above result with the code

\documentclass[a4paper]{article}
\usepackage{tikz-feynman}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows,positioning,automata,backgrounds,calc,er,patterns}
\tikzfeynmanset{compat=1.0.0}
\begin{document}
$\feynmandiagram[horizontal=a to b, tree layout]{
a-- [fermion] b;
};
\quad\raisebox{-0.5ex}{=}\quad
\feynmandiagram[horizontal=a to b, tree layout]{
a -- b;
};
\raisebox{-0.5ex}{+}
\feynmandiagram[horizontal=b to c, tree layout] {
b -- c,
b -- [gluon, half left] c;
};
\raisebox{-0.5ex}{+}
\feynmandiagram[horizontal=a to d, tree layout] {
a -- b -- c -- d,
b -- [gluon, half left] c,
a -- [gluon, half left] d;
};
\raisebox{-0.5ex}{+}
\feynmandiagram[horizontal=a to f, tree layout] {
a -- b -- c -- d -- e -- f,
c -- [gluon, half left] d,
b -- [gluon, half left] e,
a -- [gluon, half left] f;
};
\raisebox{-0.5ex}{+\dots}$
\end{document}

If I don't use "tree layout" attribute, the diagrams look like

which is still not what I want. Using version 1.1.0 instead of 1.0.0 does not change anything either.
The compiler I am using is LuaLatex.

Thanks in advance :)

Answer 1

From your comment I understand that you have several diagrams in your document that rely on lualatex. Therefore, I propose to use \diagram* (see end of section 3.1 in the manual) which "uses the most basic algorithm".

\documentclass[a4paper]{article}
\usepackage{tikz-feynman}
\usetikzlibrary{shapes,arrows,positioning,automata,backgrounds,calc,er,patterns}
\tikzfeynmanset{compat=1.0.0}
\begin{document}
$\tikz{\begin{feynman}\diagram*{
a-- [fermion] b;
};\end{feynman}}
\quad\raisebox{-0.5ex}{=}\quad
\tikz{\begin{feynman}\diagram*{
a -- b;
};\end{feynman}}
\raisebox{-0.5ex}{+}
\tikz{\begin{feynman}\diagram*{
b -- c,
b -- [gluon, half left] c;
};\end{feynman}}
\raisebox{-0.5ex}{+}
\tikz{\begin{feynman}\diagram*{
a -- b -- c -- d,
b -- [gluon, half left] c,
a -- [gluon, half left] d;
};\end{feynman}}
\raisebox{-0.5ex}{+}
\tikz{\begin{feynman}\diagram*{
a -- b -- c -- d -- e -- f,
c -- [gluon, half left] d,
b -- [gluon, half left] e,
a -- [gluon, half left] f;
};\end{feynman}}
\raisebox{-0.5ex}{+\dots}$
\end{document}

I know that you already went another way, but maybe this answer will be helpful for others who encounter similar problems in the future.