$ git clone -n https://src.fedoraproject.org/rpms/gtk3.git /var/lib/mock/f38-build-721971-98681/root/chroot_tmpdir/scmroot/gtk3
Cloning into '/var/lib/mock/f38-build-721971-98681/root/chroot_tmpdir/scmroot/gtk3'...
$ git reset --hard 0a15907ad1d5978b7d0ad1039d668ba904e7f150
HEAD is now at 0a15907 Update to 3.24.38