gr-iqbal is not supported to gnuradio3.7

[zkmartin]

I installed gnuradio3.7 succcessfully.Then I wanted to install some recipes.
The commands I executed is as following:
sudo apt-get install python-pip
pip install --upgrade pip
pip install git+https://github.com/gnuradio/pybombs.git
pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes.git
pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera.git
pybombs prefix init /usr/local -a myprefix -R gnuradio-stable

To install some other recipes I executed the following command:
pybombs install osmo-sdr rtl-sdr gnuradio dump1090 hackrf bladeRF airspy gr-iqbal libosmo-dsp gr-osmosdr gqrx
The report showed that gr-iqbal was not supported to gnuradio3.7
My target is to install gr-mediatools and gr-mapper, these two recipes are only supported to gnuradio3.7. So how to change the command to get the old branch of all the recipes that support to gnuradio3.7.

The following is error report.
CMake Error at CMakeLists.txt:45 (find_package):
Could not find a configuration file for package "Gnuradio" that is
compatible with requested version "3.8".

The following configuration files were considered but not accepted:

/usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake, version: 3.7.14.0

-- Configuring incomplete, errors occurred!
See also "/usr/local/src/gr-iqbal/build/CMakeFiles/CMakeOutput.log".
[ERROR] Configuration failed after running at least twice.
[ERROR] Problem occurred while building package gr-iqbal:
Configuration failed
[ERROR] Error installing package gr-iqbal. Aborting.