Incompatibility between thmtools and hyperref packages in Tex Live 2024 and 2025

Packages involved:
TL-2024 {thmtools}[2023/05/04 v0.76], {hyperref}[2024-11-05 v7.01l]
TL-2025 {thmtools}[2023/05/04 v0.76], {hyperref}[2025-07-12 v7.01o]

Links to theorem-like environments defined by thmtools, that are produced by hyperrref-packages [2024-11-05 v7.01l] in TeXLive-2024 and [2025-07-12 v7.01o] in TeXLive-2025, do not work correctly.

Here is an `almost' minimal working example:

% !TEX TS-program = pdflatex

\documentclass{article}
\usepackage{amsthm}
\usepackage{thmtools}
\declaretheoremstyle[%
headfont=\color{blue}\normalfont\bfseries,
bodyfont=\color{black}\normalfont\itshape,
]{coloredtm}
\declaretheorem[%
style=coloredtm,
name=Theorem,
numberwithin=section
]{tm}
\declaretheoremstyle[%
headfont=\color{blue}\normalfont\bfseries,
bodyfont=\color{black}\normalfont,
]{coloreddef}
\declaretheorem[%
style=coloreddef,
name=Example,
sibling=tm
]{exa}
\declaretheorem[%
style=coloreddef,
name=Definition,
sibling=tm
]{dfn}

\usepackage[colorlinks]{hyperref}

\begin{document}

\section{Section 1}
\begin{exa} \label{IntroExa1}
This is Example 1.1, \emph{not} 2.1,!
\end{exa}

\subsection{}
\begin{dfn}\label{def:1.1}
This is Definition 1.2.
\end{dfn}
\begin{exa}\label{ExaLMS}
This is Example 1.3.
\end{exa}

\subsection{}
\begin{exa}\label{rate}
This is Example 1.4, \emph{not} 2.4,!
\end{exa}

\subsection{}
\begin{exa}
This is Example 1.5.
\end{exa}
\begin{exa}[Yet another example] \label{Elaine}
This is Example 1.6.
\end{exa}

%%%%%%%%%%%%%%%%%%%%%%%

\section{Section 2}
\begin{exa}\label{ExaLip1}
This is Example 2.1.
\end{exa}

\subsection{}
\begin{exa}\label{ExaLip2}
This is indeed Example 2.2.
\end{exa}
\begin{exa}\label{ExaLip3}
This is Example 2.3
\end{exa}
\begin{exa}\label{ExaLip4}
This is Example 2.4
\end{exa}

See Examples~\ref{ExaLip1}, \ref{ExaLip2}, and~\ref{ExaLip4}.

\end{document}

Until TeXLive-2023, including
TL-2023 {thmtools}[2023/05/04 v0.76], {hyperref}[2023-11-26 v7.01g]
all the way down to TL-2015, these links work as they should.

Same with "numberwithin=chapter" in case of \documentclass{book}.

Start by compiling the provided minimal working example with TeX Live 2024 and 2025, then compare its theorem links with TeX Live 2023. The work is done when links created for thmtools theorem-like environments resolve correctly in the affected versions.